imho.run
Menu
Sign in with Steam

Cosmic Osmo and the Worlds Beyond the Mackerel vs Elroy and the Aliens

Cosmic Osmo and the Worlds Beyond the Mackerel and Elroy and the Aliens both land in Adventure 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 are Adventure games on Steam. Cosmic Osmo and the Worlds Beyond the Mackerel (1989) is 36 years older than Elroy and the Aliens (2025). Elroy and the Aliens scores higher on Steam reviews (96.3% positive) than Cosmic Osmo and the Worlds Beyond the Mackerel (79.2% positive). 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 Cosmic Osmo and the Worlds Beyond the Mackerel

Choose Cosmic Osmo and the Worlds Beyond the Mackerel if you want a Casual experience. On Steam, it's currently about 67% cheaper on the Steam Store. Cosmic Osmo and the Worlds Beyond the Mackerel launched in 1989.

Choose Elroy and the Aliens

Choose Elroy and the Aliens if you want the Custom Volume Controls, Stereo Sound, and Playable without Timed Input side of the pairing. On Steam, it carries the stronger Steam consensus at 96.3% positive across 273 reviews.

Both Cosmic Osmo and the Worlds Beyond the Mackerel and Elroy and the Aliens sit in Adventure on Steam, 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

Cosmic Osmo and the Worlds Beyond the Mackerel vs Elroy and the Aliens — Steam metadata comparison
Cosmic Osmo and the Worlds Beyond the Mackerel — Steam game coverCosmic Osmo and the Worlds Beyond the MackerelElroy and the Aliens — Steam game coverElroy and the Aliens
Released19892025
GenresAdventure, CasualAdventure
PlatformsWindowsWindows, macOS, Linux
Steam DeckUnratedDeck Verified
Price5.99 USD17.99 USD
Steam reviews79.2% positive (101 reviews)96.3% positive (273 reviews)
MultiplayerSingle-player onlySingle-player only
DevelopersCyan Worlds, Inc.Motiviti

Side by side

Cosmic Osmo and the Worlds Beyond the Mackerel vs Elroy and the Aliens — FAQ

Which is better, Cosmic Osmo and the Worlds Beyond the Mackerel or Elroy and the Aliens?
On Steam reviews Elroy and the Aliens scores higher (96.3% positive) than Cosmic Osmo and the Worlds Beyond the Mackerel (79.2% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Elroy and the Aliens is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
Should I play Cosmic Osmo and the Worlds Beyond the Mackerel or Elroy and the Aliens first?
If you want chronology, Cosmic Osmo and the Worlds Beyond the Mackerel (1989) came out before Elroy and the Aliens (2025). 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 Cosmic Osmo and the Worlds Beyond the Mackerel and Elroy and the Aliens similar?
They overlap on Adventure 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.
Cosmic Osmo and the Worlds Beyond the Mackerel vs Elroy and the Aliens