IMHO.

Project Zomboid vs Alien Apocalypse

Project Zomboid and Alien Apocalypse both land in Indie, Simulation, RPG on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Indie, Simulation, RPG on Steam. Project Zomboid (2013) is 13 years older than Alien Apocalypse (2026). Both support cooperative play. No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.

Which should you pick?

Choose Project Zomboid

Choose Project Zomboid if you want an Early Access game with Shared/Split Screen, Online PvP, and Shared/Split Screen Co-op. On Steam, it's Steam Deck Verified, so handheld play works out of the box. 147,516 Steam reviews back the pick.

Choose Alien Apocalypse

Choose Alien Apocalypse if you want an Action and Adventure game with Custom Volume Controls, Stereo Sound, and Surround Sound. On Steam, it's the newer release (2026) and ships with the modern feature baseline. Alien Apocalypse launched in 2026.

Both Project Zomboid and Alien Apocalypse sit in Indie, Simulation, and RPG on Steam and both list Multi-player, Online Co-op, and Co-op, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.

Side-by-side comparison

Project Zomboid vs Alien Apocalypse — Steam metadata comparison
Project Zomboid — Steam game coverProject ZomboidAlien Apocalypse — Steam game coverAlien Apocalypse
Released20132026
GenresIndie, Simulation, RPG, Early AccessAction, Indie, Adventure, Simulation, RPG
PlatformsWindows, macOS, LinuxWindows
Steam DeckDeck VerifiedUnrated
Price19.99 USDPrice unknown
Steam reviews94% positive (147,516 reviews)—
MultiplayerMulti-player, Cross-Platform Multiplayer, Online Co-opMulti-player, Online Co-op, Co-op
DevelopersThe Indie StoneUmbu Games

Side by side

Project Zomboid vs Alien Apocalypse — FAQ

Should I play Project Zomboid or Alien Apocalypse first?
If you want chronology, Project Zomboid (2013) came out before Alien Apocalypse (2026). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
Are Project Zomboid and Alien Apocalypse similar?
They overlap on Indie, Simulation, RPG on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
Do both Project Zomboid and Alien Apocalypse have co-op?
Yes — both list a co-op category on Steam. Specifics differ: Project Zomboid ships Online Co-op, Shared/Split Screen Co-op; Alien Apocalypse ships Online Co-op, Co-op.
Does Project Zomboid run on Steam Deck?
Yes — Project Zomboid is rated Deck Verified by Valve. Alien Apocalypse doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.
Project Zomboid vs Alien Apocalypse — Verdict (2026) · imho.run