{
  "id": 77,
  "slug": "mobile-survival-games-teardown",
  "kind": "research",
  "name": "Last Z and Mafia City: how the mobile survival 4X games work",
  "summary": null,
  "body_md": "# Mobile survival-SLG teardown: Last Z: Survival Shooter and Mafia City\n\nResearched 2026-09-08. Figures are third-party estimates unless stated; dates are the source's publication date.\n\n## 1. Last Z: Survival Shooter\n\n**Publisher correction.** Not 37Games. Both store listings credit **Omnilojo Pte Ltd** (Singapore) ([Google Play](https://play.google.com/store/apps/details?id=com.readygo.barrel.gp); [App Store](https://apps.apple.com/us/app/last-z-survival-shooter/id6503272652)). Sensor Tower attributes it to \"Florere Game\" ([Tiger Brokers/Sensor Tower, 2026-01-13](https://www.itiger.com/news/1143976939)); PocketGamer.biz places Omnilojo inside **RiverGame**'s portfolio alongside Dark War Survival ([PG.biz, 2026](https://www.pocketgamer.biz/the-top-30-china-game-makers-of-2026/)). GameMakers says RiverGame's co-founder came from ELEX and that Last War's First Fun founder took a 42% stake in RiverGame in 2021, calling Last Z \"a higher-fidelity Last War variant\" ([GameMakers, 2024](https://www.gamemakers.com/p/cracking-the-4x-code-first-fun-and)). First release: **2024-06-07** ([chrome-stats](https://chrome-stats.com/d/com.readygo.barrel.gp)). 37Games' zombie 4X is Puzzles & Survival, not this.\n\n**One-line fantasy.** \"Dodge and shoot\" your way through a zombie apocalypse, then build the shelter that the survivors rally to ([Google Play](https://play.google.com/store/apps/details?id=com.readygo.barrel.gp)).\n\n**Core loop (a session).** Minute 0-2: collect resources, claim daily/weekly pass chests, send \"trade trucks\" (purple/orange trucks yield hero fragments and diamonds) ([Lootbar, 2026-05-29](https://www.lootbar.com/blog/en/last-z-f2p-guide-best-strategies-to-grow-and-outrank-others.html)). Minute 2-8: run the vertical shooter stages: a hero squad auto-fires up a lane while you drag to dodge, shoot barrels/gates for buffs, clear mobs before bosses ([Joytify, 2025-09-26](https://www.joytify.com/blog/en-us/other/rpg-last-z-survival-shooter-guide/)). Minute 8-15: five Arena attempts, bounty/radar missions, daily missions, Arms Race tasks (350 diamonds for 18 medals) ([lastzguides](https://lastzguides.com/tips.html); [Lootbar](https://www.lootbar.com/blog/en/last-z-f2p-guide-best-strategies-to-grow-and-outrank-others.html)). Minute 15-20: queue the longest HQ/research/training timers \"before sleep\", dispatch gathering marches overnight ([Joytify](https://www.joytify.com/blog/en-us/other/rpg-last-z-survival-shooter-guide/)). Guides recommend two logins a day ([lastzguides](https://lastzguides.com/tips.html)).\n\n**Meta loop.** HQ (1-35) gates everything; Laboratory is required for every HQ upgrade; three camps (Rider/Assaulter/Shooter); resource buildings are \"money sinks\" ([lastzguides](https://lastzguides.com/tips.html); [Z Tools](https://ztools.co.uk/wiki/)). Heroes: 26 catalogued, three factions (Blood Rose/Assaulters, Wings of Dawn/Shooters, Guard of Order/Riders), star-ups via orange fragments, gear promotion, \"plugins\"/hexagon upgrades, vehicles bought with Golden Wrenches ([lastzsurvivalshooter.com](https://lastzsurvivalshooter.com/); [Packsify, 2026-05-15](https://www.packsify.com/blogs/last-z-survival-what-to-buy-weekly-store-breakdown)). Research: 9 trees, ~4.22M badges total, late paths \"Steel Age\"/T10 ([Z Tools](https://ztools.co.uk/wiki/)). Troops: T9 at camp level 27; T10 is a \"12-24 month\" goal; Special Forces research costs 1.5M badges ([Lootbar](https://www.lootbar.com/blog/en/last-z-f2p-guide-best-strategies-to-grow-and-outrank-others.html)).\n\n**Social layer.** Alliances give construction/research buffs and gifts; weekly Alliance Duel with day-specific point categories ([lastzguides](https://lastzguides.com/tips.html)); Canyon Clash (alliance territory, Fridays); Zombie Siege (30 waves, ~1h45, scheduled Mon/Tue by R4/R5, reinforce allies' HQs); Tyrant boss rallies (spawn every 3 days; must be within 30 km to start, 80 km to join); Battle Fortress shared build ([lastz.gg](https://lastz.gg/basics/events); [lastzguides](https://lastzguides.com/zombie-siege.html); [Fandom](https://lastzshooterrun.fandom.com/wiki/Event_Sites)). Server-vs-server \"Capital Clash\": every two weeks, four states per group, prep phase Sun-Fri, battle Saturday, invader/defender roles, central Capital plus four turrets; all nine personal chests need 2.25M points ([ldshop.gg](https://www.ldshop.gg/blog/last-z/svs-guide.html)). Seasons (S2-S5 \"Moonlit Elegy\" by July 2026) add Influence/Glory points and Volcano War; state migration is a documented system ([Z Tools](https://ztools.co.uk/wiki/); [patch notes 1.250.716, 2026-07-13](https://mmediamreza.com/en/last-z/update-1-250-716-patch-notes)).\n\n**Map & combat.** Shared state map with resource tiles, \"digs\", doom elites, cross-state travel in Enemy Buster; reinforcing an ally's HQ moves troops faster than a normal march ([Z Tools](https://ztools.co.uk/wiki/)). Combat is auto-resolved formations of heroes + troops + vehicles with rock-paper-scissors troop types; defensive heroes stay home to stop offline raids ([lastzsurvivalshooter.com](https://lastzsurvivalshooter.com/); [mmediamreza](https://mmediamreza.com/en/last-z/most-asked-player-questions)). The shooter lane is the \"front door\": store listing leads with it; Sensor Tower credits \"shooter mechanics as a key user acquisition highlight\" ([Tiger Brokers](https://www.itiger.com/news/1143976939)).\n\n**Walls & timers.** Builder queues (2nd/3rd builder is the top F2P diamond buy), research/training timers, weekly 24h shield purchases (guides say keep 2,000 diamonds for Friday shields), 2-3 week SvS cycles ([Lootbar](https://www.lootbar.com/blog/en/last-z-f2p-guide-best-strategies-to-grow-and-outrank-others.html)).\n\n**Monetization.** IAP tiers $0.99-$99.99 (\"Resource Hot Sale\" packs) ([App Store](https://apps.apple.com/us/app/last-z-survival-shooter/id6503272652)); VIP levels with a VIP shop (VIP 10+ unlocks extra store items), plus Glory, Merit, Camilla's, Time-Limited, Power Core and Black Market shops on separate currencies; a \"Lucky Discounter\" every 4 weeks; guides mention accounts \"spending $500+/month\" ([Packsify](https://www.packsify.com/blogs/last-z-survival-what-to-buy-weekly-store-breakdown); [Lootbar](https://www.lootbar.com/blog/en/last-z-f2p-guide-best-strategies-to-grow-and-outrank-others.html)). Daily/weekly pass chests exist ([Lootbar](https://www.lootbar.com/blog/en/last-z-f2p-guide-best-strategies-to-grow-and-outrank-others.html)); subscription price: not found. Loot-box disclosure on Google Play ([Google Play](https://play.google.com/store/apps/details?id=com.readygo.barrel.gp)). **Numbers:** US weekly revenue ~$2.6M and 242K WAU by end-June 2025 ([Sensor Tower, Q2 2025](https://sensortower.com/blog/2025-q2-unified-top-5-zombie%20games-units-us-600b2bd4241bc16eb88ccbaf)); **$470M in 2025**, 6th-highest Chinese game overseas ([Sensor Tower via Tiger, 2026-01-13](https://www.itiger.com/news/1143976939)); 34th top-grossing globally in 2025 ([PG.biz](https://www.pocketgamer.biz/the-top-grossing-mobile-games-of-2025/)); **$359M in H1 2026, +328% YoY** ([Sensor Tower H1'26 via GameDevReports, 2026-08-17](https://gamedevreports.substack.com/p/sensor-tower-the-gaming-market-in)). Downloads: 10M+ on Play; ~40.3M estimated ([chrome-stats](https://chrome-stats.com/d/com.readygo.barrel.gp)). ARPU: not found.\n\n**Ads vs game.** \"Pull-the-pin\" playables for Last Z: not found in any source. What is documented: live-action \"bad acting\" skits and shooter-run clips that TikTok/YouTube creators label \"ads vs reality\"/\"fake game?\" ([TikTok](https://www.tiktok.com/discover/last-z-survival-shooter-ads-vs-reality); [YouTube Badvertising](https://www.youtube.com/watch?v=VKpxd3qyrCA); [YouTube](https://www.youtube.com/watch?v=9VxmdH5Qsqw)). The gap: ads show minutes of shooting; the shooter is a small slice bolted onto a timer-driven 4X, the same pattern documented for Last War's \"Doomsday\" mode (<5% of play) ([FakeAdGames](https://fakeadgames.com/archive/last-war-survival)).\n\n**Retention hooks.** Twice-daily login cadence, Arms Race, VS Duel daily rotation, weekly Alliance Duel, biweekly SvS, monthly event calendars (Rose Lucky Number, Gold Bar Store), seasons, shields, refugee tickets ([Z Tools](https://ztools.co.uk/wiki/); [patch notes](https://mmediamreza.com/en/last-z/update-1-250-716-patch-notes)).\n\n**Complaints.** Store reviews allege arena matchmaking favours spenders and troop-selection bugs ([Google Play](https://play.google.com/store/apps/details?id=com.readygo.barrel.gp)); offline raids on new bases ([mmediamreza](https://mmediamreza.com/en/last-z/most-asked-player-questions)); commercial farm bots are openly sold ([gnbots](https://www.gnbots.com/shop/last-z-survival-shooter-bot/)).\n\n**Built with.** Engine: not found (2.2 GB iOS build). Server architecture: not found beyond \"states\" with migration. Live-ops: small patches every few weeks between seasonal drops ([patch notes](https://mmediamreza.com/en/last-z/update-1-250-716-patch-notes)); version 1.250.726 on 2026-09-04 ([chrome-stats](https://chrome-stats.com/d/com.readygo.barrel.gp)).\n\n## 2. Mafia City (Yotta Games / Phantix Games)\n\n**Identity.** Released 2017-03-30 by Phantix Games (Yotta's publishing label; store seller VoyagerOne Pte. Ltd.) ([Wikipedia](https://en.wikipedia.org/wiki/Mafia_City); [App Store](https://apps.apple.com/us/app/mafia-city-war-of-underworld/id1235569398)). 100M+ Play installs, 4.4 stars from 1.39M reviews ([Google Play](https://play.google.com/store/apps/details?id=com.yottagames.mafiawar)). Banned in India 2020-09-02 ([Wikipedia](https://en.wikipedia.org/wiki/Mafia_City)).\n\n**Fantasy.** Rise from \"Lv.1 crook\" to Godfather: rob banks, run turf wars, date \"babes\", collect cars ([App Store](https://apps.apple.com/us/app/mafia-city-war-of-underworld/id1235569398)).\n\n**Core loop.** Collect cash/cargo/arms/metal from turf buildings; tap timers on Mansion upgrades; train crew in Biker/Bulker/Shooter camps and the Vehicle Refit Center; hit Street Forces for \"dirty money\" to bribe; play the cups-and-gem minigame to unlock babe skills; complete daily contracts for loot crates; deplete resource tiles fully so new ones spawn ([BlueStacks](https://www.bluestacks.com/blog/game-guides/mafia-city/mf-tips-tricks-en.html); [AppGamer crew guide](https://www.appgamer.com/mafia-city/strategy-guide/crew-facilities-guide); [own-mafiacity](https://www.own-mafiacity.com/tips-tricks)). Newsweek's summary: \"a mindless clicker with building mechanics\" ([Newsweek, 2019-01-09](https://www.newsweek.com/thats-how-mafia-works-pewdiepie-mafia-city-meme-big-chungus-1285920)).\n\n**Meta.** Mansion level gates camps and Clubs (training speed/capacity); Healing Center capacity or wounded die; Investment Center tech (turf defense, garrison); Leader levels and equipment; Security Center defense weapons with counters (grenades vs Bulkers, caltrops vs Bikers, firebombs vs Shooters); Vigilantes stationed on walls ([AppGamer](https://www.appgamer.com/mafia-city/strategy-guide/crew-facilities-guide); [Phantix guide, 2020-01-21](https://mafiah5.phantixgames.com/en/article/get_content/4415)).\n\n**Social & map.** Clans with \"Speedy/Encirclement/Group Battle\" modes, clan hospital and clan store, turf wars over territory on a worldwide unified server with weekly-updated maps ([MMOHuts, 2018-06-15](https://mmohuts.com/news/mafia-city-h5-new-mafia-gangster-mmorpg-yotta-game); [App Store](https://apps.apple.com/us/app/mafia-city-war-of-underworld/id1235569398)). Combat: auto-resolved marches with four crew classes in rock-paper-scissors, wounded to hospital ([AppGamer](https://www.appgamer.com/mafia-city/strategy-guide/crew-facilities-guide)). Rally/shield details are thin in primary sources; the bot listing enumerates the daily chores: gather, shield turf, attack street forces, repair wall, heal, train, \"Gold Rush\" ([gnbots](https://www.gnbots.com/mafia-city-bot/)). Marching times: not found.\n\n**Monetization.** Gold premium currency with first-purchase bonus; $0.99 Fortune/Rookie packs up to $99.99; $4.99 subscription ([AppGamer spending guide](https://www.appgamer.com/mafia-city/strategy-guide/spending-guide); [App Store](https://apps.apple.com/us/app/mafia-city-war-of-underworld/id1235569398)). VIP 1-10, then SVIP 1-10 (60,000 extra points; 1 SVIP point = 20 VIP points), then an SVIP Store with 13 levels selling permanent crew buffs up to 52% ([Flavio Gaming, 2019-11-06](https://flaviogaming.com/svip-store-vip-levels-mafia-city/)). \"Simulated gambling\" rating on Play ([Google Play](https://play.google.com/store/apps/details?id=com.yottagames.mafiawar)). **Numbers:** ~$100M revenue and 24M downloads in 2018, 43% from Japan ([Pandaily, 2020](https://pandaily.com/top-10-chinese-mobile-games-overseas-in-2020/)); Europe Q1 2024 peak ~$414K/week, 45-65K weekly downloads, WAU 231K to 203K ([Sensor Tower](https://sensortower.com/blog/2024-q1-unified-top-5-crime%20games-revenue-europe-6011691c241bc16eb88b4dc2)); US Android Q1 2025 $165-234K/week, 5-10K downloads, WAU 23K to 13K ([Sensor Tower](https://sensortower.com/blog/2025-q1-android-top-5-crime%20games-revenue-us-6011691c241bc16eb88b4dc2)). Lifetime revenue: not found.\n\n**Ads vs game.** The 2018-19 \"Lv.1 Crook vs Lv.100 Boss\" and frying-pan skits spawned \"That's how mafia works\" (PewDiePie, Slazo); a hostage-torture ad was pulled from YouTube in August 2018 ([Newsweek](https://www.newsweek.com/thats-how-mafia-works-pewdiepie-mafia-city-meme-big-chungus-1285920); [Wikipedia](https://en.wikipedia.org/wiki/Mafia_City)). Ads sell a third-person GTA-style RPG; the game is \"stare at a top-down base, tap timers, wait, spend gems\" ([FakeAdGames](https://fakeadgames.com/archive/mafia-city)).\n\n**Complaints.** \"$1500... to obtain a permanent design\"; GM replies once a day; \"every single ad... looks completely different\"; big players farm small turfs ([JustUseApp](https://justuseapp.com/en/app/1235569398/mafia-city-war-of-underworld/reviews)); Trustpilot 2.4/5 with unanswered tickets, unauthorized $23.99/month charges, \"buy 30 packs at $99.99, get 1 free\" ([Trustpilot](https://uk.trustpilot.com/review/www.yottagames.com)); no in-game instructions, 9-day account recovery ([Google Play](https://play.google.com/store/apps/details?id=com.yottagames.mafiawar)); farm-account bots \"hundreds of accounts\" ([gnbots](https://www.gnbots.com/mafia-city-bot/)).\n\n**Built with.** The browser edition (Mafia City H5, 2018) is advertised as \"3D HD Unity game engine\" on a \"worldwide unified server\" ([MMOHuts](https://mmohuts.com/news/mafia-city-h5-new-mafia-gangster-mmorpg-yotta-game)); the mobile client's engine is not confirmed. Server architecture: not found. Live-ops: weekly events/maps, Peaky Blinders/Yakuza crossovers, updates through 2026-07 ([Wikipedia](https://en.wikipedia.org/wiki/Mafia_City); [Google Play](https://play.google.com/store/apps/details?id=com.yottagames.mafiawar)).\n\n## 3. Genre context: mobile 4X / SLG\n\n**Size.** Strategy IAP grew from $10.8B to $13.5B in the year to late 2025 (+25.6%), 4X sub-genre +26%; $99 offers over-index; \"most revenue comes from Asian publishers whose games disguise themselves as simpler genres in the first sessions\" ([AppMagic, 2025-12-04](https://gamedevreports.substack.com/p/appmagic-mobile-games-monetization)). Sensor Tower: 4X revenue peaked at $3.09B in Q4 2025 and fell for two quarters; strategy still the largest genre at $9.27B in H1 2026 ([Sensor Tower H1'26](https://gamedevreports.substack.com/p/sensor-tower-the-gaming-market-in)). Deconstructor of Fun: 2025 winners used \"accessible mini-games, extreme social loops, a near-predatory level of monetization, and an unholy scale of misleading marketing\" ([DoF, 2026-02-02](https://www.deconstructoroffun.com/blog/2026/2/2/state-of-mobile-2026)). Baseline: $3.3B Western 4X in 2020 ([DoF, 2021-01-21](https://www.deconstructoroffun.com/blog/2021/1/20/2021-predictions-4-strategy-games)).\n\n**Top earners.** Last War $2.2B (2025), Whiteout $1.9B (2025), Kingshot #14 ([PG.biz, data to 2025-12-21](https://www.pocketgamer.biz/the-top-grossing-mobile-games-of-2025/)); H1 2026: Last War $977M, Whiteout $918M, Kingshot $700M (+461%) ([Sensor Tower H1'26](https://gamedevreports.substack.com/p/sensor-tower-the-gaming-market-in)); Whiteout lifetime ~$4.9B, Last War ~$5B ([PG.biz 2026](https://www.pocketgamer.biz/the-top-30-china-game-makers-of-2026/)); Rise of Kingdoms $3.5B+ lifetime ([WN Hub, 2024-05-28](https://wnhub.io/news/finance/item-43560)); Puzzles & Survival $595M by Nov 2022, State of Survival $64M first year ([Naavik, 2022-12-08](https://naavik.co/deep-dives/puzzles-and-survival-2/)). ARPDAU: Last War $2.47 vs Whiteout $1.08 (iOS US, 2025-01); Last War D1/D7/D30 34/11/4% ([Naavik, 2025-01-22](https://naavik.co/digest/how-last-war-is-winning-the-4x-game/)); Whiteout $1.21, Kingshot $1.45 with 1.7M DAU (Oct 2025) ([Naavik, 2025-11-09](https://naavik.co/digest/century-games-4x-portfolio-strategy/)).\n\n**Why survival skins.** Zombie apocalypse is \"a near perfect metaphor for players to band together in an unforgiving race for power\" ([Naavik 2022](https://naavik.co/deep-dives/puzzles-and-survival-2/)); freezing survivors \"invoke the feeling of pity\" even though the furnace is \"largely a smoke screen\" ([Naavik, 2024-03-01](https://naavik.co/four-x-evolution-2/)); ads sell \"drama and tension\" rather than gameplay ([DoF, 2025-02-10](https://www.deconstructoroffun.com/blog/2025/2/10/the-soap-operas-driving-success-across-mobile-games-post-att)).\n\n**Shared template.** Build, research, train, gather, march-battle on a persistent shared map ([Naavik 2022](https://naavik.co/deep-dives/puzzles-and-survival-2/)); alliance hive plus rally and shield economy; KvK/SvS; success comes from \"incremental innovation... bundled with excellence in performance marketing and live services\", monetized via high ARPPU on low DAU ([DoF 2021](https://www.deconstructoroffun.com/blog/2021/1/20/2021-predictions-4-strategy-games)). Century Games reskins the same gear tiers, VIP, speed-ups and events across Whiteout and Kingshot ([Naavik 2025](https://naavik.co/digest/century-games-4x-portfolio-strategy/)).\n\n**Minigame front door.** Last War's math-lane runner is >50% of its UA impressions and fills the first 4-5 minutes ([Naavik 2025-01](https://naavik.co/digest/how-last-war-is-winning-the-4x-game/)); Whiteout's 90-minute idle furnace phase delays the 4X reveal, \"a highly effective bait n' switch\" ([Naavik 2024](https://naavik.co/four-x-evolution-2/)); P&S uses match-3; Kingshot uses tower defense; Last Z uses the shooter lane; \"after day 30 the whole server is just paying players\" ([GameMakers](https://www.gamemakers.com/p/cracking-the-4x-code-first-fun-and)).\n\n## 4. A browser, doodle-styled, agent-run version\n\n**Keep (the skeleton).** Base with a gating HQ and 2-3 build queues; 3-class RPS troops; hero squad with a 60-second lane/wave minigame as the daily \"front door\"; shared tile map with gather marches, rallies, shields and an alliance hive; weekly alliance duel, biweekly server-vs-server, seasons that reset the meta; daily quests and a visible event calendar. Agents fit well: every event above is already scripted for R4/R5 leaders and bots.\n\n**Drop.** VIP/SVIP ladders and permanent paid stat buffs; loot-box hero gacha; speed-up sales and the \"buy builders\" gate; $99 pack anchoring and 30-pack \"gifts\"; whale-targeted matchmaking; misleading playables. Replace timers with short real-time tick lengths, sell only cosmetics/doodle skins, and make bots first-class citizens instead of a ToS violation.\n\n**Open-source projects to learn from (stars as fetched 2026-09-08).** [OpenFrontIO](https://github.com/openfrontio/OpenFrontIO) 2.6k, TypeScript real-time territory/alliance game, AGPL; [freeciv-web](https://github.com/freeciv/freeciv-web) 2.2k, HTML5/WebGL 4X with multiplayer server; [TravianZ](https://github.com/Shadowss/TravianZ) ~300, PHP Travian T3.6 server (village/tile/march model, v10 refactor 2026-05); [Pillage First!](https://github.com/jurerotar/Pillage-First-Ask-Questions-Later) 160, TypeScript/React offline-first Travian-like, AGPL; [1255-burgomaster](https://github.com/topics/travian-clone) 141, JS town builder; [vallorium](https://github.com/topics/travian-clone) 25, Python persistent browser MMO-RTS; [parabellum](https://github.com/topics/travian-clone) 24, Rust Travian clone.\n\n## Counts\n\n36 web searches, 57 page fetches (12 failed: robots/429/blocked), 58 distinct URLs cited; 7 \"not found\" items (Last Z engine, server architecture, ARPU, subscription price, pin-puzzle ads; Mafia City lifetime revenue, mobile engine, march times). Word count: ~1,910 (wc -w).",
  "lines": [
    "Core loop, meta, alliances, map, monetization, the ads-vs-game gap and the numbers for Last Z and Mafia City; the 4X genre in 2025–26; what a browser, doodle, agent-run version would keep and drop"
  ],
  "author": "agent",
  "sources": null,
  "related": null,
  "verified_at": null,
  "updated_at": "2026-09-08T06:44:04.770Z",
  "cover_url": null
}