IMHO.

Games like Alien Apocalypse

If Alien Apocalypse is your kind of game, the closest matches are 7 Days to Die, Project Zomboid and The Forest — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Alien Apocalypse: Alien Apocalypse is an open-world sandbox survival game set after a devastating alien invasion. Scavenge for resources, craft, build defenses, and harness alien technology to fight back. Play solo or in co-op and reclaim what’s left of the planet.

2026ActionIndieAdventureSimulationRPGWindowsby Umbu Games
Alien Apocalypse — Steam game cover

Players who liked Alien Apocalypse also play

Steam players who put hours into Alien Apocalypse also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. 7 Days to Die

    WHY THIS

    Top pick for Alien Apocalypse fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Apocalypse.

    7 Days to Die is an open-world game that is a unique combination of first-person shooter, survival horror, tower defense, and role-playing games. Play the definitive zombie survival sandbox RPG that came first. Navezgane awaits!

    2024ActionStrategyIndie44.99 USDDeck VerifiedSteam ↗
  2. Project Zomboid

    WHY THIS

    Second-strongest match for Alien Apocalypse fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Alien Apocalypse.

    Project Zomboid is the ultimate in zombie survival. Alone or in MP: you loot, build, craft, fight, farm and fish in a struggle to survive. A hardcore RPG skillset, a vast map, massively customisable sandbox and a cute tutorial raccoon await the unwary. So how will you die? All it takes is a bite..

    2013IndieSimulationRPG19.99 USDDeck VerifiedSteam ↗
  3. The Forest

    WHY THIS

    Third-strongest match for Alien Apocalypse fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Apocalypse.

    As the lone survivor of a passenger jet crash, you find yourself in a mysterious forest battling to stay alive against a society of cannibalistic mutants. Build, explore, survive in this terrifying first person survival horror simulator.

    2018ActionIndieAdventure19.99 USDDeck PlayableSteam ↗
  4. Green Hell

    WHY THIS

    Ranked #4 for Alien Apocalypse fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Apocalypse.

    Plunge into the open-world survival simulation set in the extreme conditions of the uncharted Amazon jungle. Use real-life survival techniques to craft, hunt, fight, and gather resources, set a makeshift shelter, or raise a fortress. Survive alone or team up with your friends and challenge the jungle together.

    2019ActionIndieAdventure24.99 USDDeck VerifiedSteam ↗
  5. Don't Starve Together

    WHY THIS

    Ranked #5 for Alien Apocalypse fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Apocalypse.

    Fight, Farm, Build and Explore Together in the standalone multiplayer expansion to the uncompromising wilderness survival game, Don't Starve.

    2016ActionStrategyIndie14.99 USDDeck VerifiedSteam ↗
  6. State of Decay 2: Juggernaut Edition

    WHY THIS

    Ranked #6 for Alien Apocalypse fans by collaborative filtering across millions of Steam libraries. Shares Action and Simulation with Alien Apocalypse.

    The dead have risen and civilization has fallen. Now it's up to you to gather survivors, scavenge for resources and build a community in a post-apocalyptic world – a world where you define what it means to survive in this ultimate zombie survival simulation.

    2020ActionSimulationRPG29.99 USDDeck PlayableSteam ↗
  7. Terraria

    WHY THIS

    Ranked #7 for Alien Apocalypse fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Apocalypse.

    Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!

    2011ActionIndieAdventure9.99 USDDeck VerifiedSteam ↗
  8. Voidtrain

    WHY THIS

    Ranked #8 for Alien Apocalypse fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Apocalypse.

    Become a crew member of an Interdimensional Express Train! Discover a new world full of mysterious creatures, enemies and places. Upgrade and customize your train, gather new materials and build better weapons. Play solo or online сo-op with up to 4 people.

    2025ActionIndieAdventure29.99 USDDeck PlayableSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Life is Strange - Episode 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Adventure with Alien Apocalypse.

    Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.

    2015ActionAdventureFreeDeck PlayableSteam ↗
  2. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Alien Apocalypse.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  3. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Alien Apocalypse.

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  4. ENA: Dream BBQ

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Alien Apocalypse.

    Experience surreal environments and inexplicable characters as ENA in a new wild world.

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  5. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Alien Apocalypse.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  6. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Alien Apocalypse.

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableSteam ↗
  7. The Looker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Alien Apocalypse.

    You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.

    2022IndieFreeDeck PlayableSteam ↗
  8. missed messages.

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Alien Apocalypse.

    ‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.

    2019IndieSimulationFree To PlayFreeDeck PlayableSteam ↗

Plays great on Steam Deck

Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.

  1. 7 Days to Die

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Alien Apocalypse.

    7 Days to Die is an open-world game that is a unique combination of first-person shooter, survival horror, tower defense, and role-playing games. Play the definitive zombie survival sandbox RPG that came first. Navezgane awaits!

    2024ActionStrategyIndie44.99 USDDeck VerifiedSteam ↗
  2. Project Zomboid

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Indie and Simulation with Alien Apocalypse.

    Project Zomboid is the ultimate in zombie survival. Alone or in MP: you loot, build, craft, fight, farm and fish in a struggle to survive. A hardcore RPG skillset, a vast map, massively customisable sandbox and a cute tutorial raccoon await the unwary. So how will you die? All it takes is a bite..

    2013IndieSimulationRPG19.99 USDDeck VerifiedSteam ↗
  3. Green Hell

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Alien Apocalypse.

    Plunge into the open-world survival simulation set in the extreme conditions of the uncharted Amazon jungle. Use real-life survival techniques to craft, hunt, fight, and gather resources, set a makeshift shelter, or raise a fortress. Survive alone or team up with your friends and challenge the jungle together.

    2019ActionIndieAdventure24.99 USDDeck VerifiedSteam ↗
  4. Don't Starve Together

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Alien Apocalypse.

    Fight, Farm, Build and Explore Together in the standalone multiplayer expansion to the uncompromising wilderness survival game, Don't Starve.

    2016ActionStrategyIndie14.99 USDDeck VerifiedSteam ↗
  5. Terraria

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Alien Apocalypse.

    Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!

    2011ActionIndieAdventure9.99 USDDeck VerifiedSteam ↗

Frequently asked about Alien Apocalypse

Does Alien Apocalypse have multiplayer or co-op?
Yes — Alien Apocalypse supports multi-player play according to its Steam store listing (Multi-player, Online Co-op, Co-op).
What games are most similar to Alien Apocalypse?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Alien Apocalypse are 7 Days to Die, Project Zomboid, The Forest.
Who developed Alien Apocalypse?
Alien Apocalypse was developed by Umbu Games.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Alien Apocalypse.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.