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Cosmo's Cosmic Adventure
What's green with red spots, has suction hands, and has an overbite like Bart Simpson? Of course, the answer is Cosmo! Cosmo is a young alien on his way to visit Disney World with his parents. That is, until their ship is struck by a blazing comet, forcing them to land on an uncharted planet.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-28.
“if you had a 386 Computer you owned this game. All 3 episodes are included. Love you Apogee :P”
— a player, Steam review · 0 hrs played“One of the better platformers of the early 1990's. The later episodes get pretty difficult. Spent dozens of hours of playing Cosmo's Cosmic Adventures when it first came out. 10/10 - this finally came to Steam.”
— a player, Steam review · 1 hrs played“Pretty fun game considering its age. I finally came back to finish it, 20 years after playing the demo!”
— a player, Steam review · 8 hrs playedPlayer activity
Monthly average concurrent players. History through 2026-06 via SteamCharts; self-collected from the Steam API since Aug 2026.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
3D Realms Anthology - Steam Edition. Now Available!
Now Available on Steam - 3D Realms Anthology, 25% off! 5 May 3D Realms Anthology is Now Available on Steam and is 25% off!* With 32 classic titles - which is almost every Apogee and 3D Realms game eve
3D Realms Anthology - Steam Edition. Now Available!
Now Available on Steam - 3D Realms Anthology, 25% off! 5 May 3D Realms Anthology is Now Available on Steam and is 25% off!* With 32 classic titles - which is almost every Apogee and 3D Realms game eve
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-28.
| Genres | Action, Adventure |
| Player tags | Action · Adventure · Platformer · 1990's · Singleplayer · 2D · Classic · Retro (SteamSpy community voting) |
| Features | Single-player · Partial Controller Support · Family Sharing |
| Languages | English |
| Official site | https://3drealms.com/catalog/cosmos-cosmic-adventure_37/ |
Minimum system requirements (PC)
Minimum: OS *: Windows XP, Windows Vista, Windows 7 or Windows 8 Processor: Intel Core Duo 2 Memory: 2 GB RAM