IMHO.

CompactO - Idle Game vs Idle Sphere

CompactO - Idle Game and Idle Sphere both land in Strategy, Indie, Simulation 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 Strategy, Indie, Simulation on Steam. CompactO - Idle Game (2021) is 3 years older than Idle Sphere (2024). CompactO - Idle Game scores higher on Steam reviews (63.3% positive) than Idle Sphere (43.5% 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 CompactO - Idle Game

Choose CompactO - Idle Game if it matches what drew you to this matchup. CompactO - Idle Game launched in 2021.

Choose Idle Sphere

Choose Idle Sphere if you want a Free To Play and Early Access experience. On Steam, it's free to play, so the barrier to trying it is zero. Idle Sphere launched in 2024.

Both CompactO - Idle Game and Idle Sphere sit in Strategy, Indie, and Simulation 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

CompactO - Idle Game vs Idle Sphere — Steam metadata comparison
CompactO - Idle Game — Steam game coverCompactO - Idle GameIdle Sphere — Steam game coverIdle Sphere
Released20212024
GenresStrategy, Indie, Simulation, CasualStrategy, Indie, Simulation, Free To Play, Casual, Early Access
PlatformsWindowsWindows, macOS
Steam DeckDeck PlayableDeck Unsupported
Price2.99 USDFree to play
Steam reviews63.3% positive (60 reviews)43.5% positive (200 reviews)
MultiplayerSingle-player onlySingle-player only
DevelopersConsidera Games LLCIdle System, Inc., Yayu

Side by side

CompactO - Idle Game vs Idle Sphere — FAQ

Should I play CompactO - Idle Game or Idle Sphere first?
If you want chronology, CompactO - Idle Game (2021) came out before Idle Sphere (2024). 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 CompactO - Idle Game and Idle Sphere similar?
They overlap on Strategy, Indie, Simulation 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.
Is Idle Sphere free?
Yes — Idle Sphere is a free-to-play Steam title. CompactO - Idle Game is paid (2.99 USD).
CompactO - Idle Game vs Idle Sphere — Verdict (2026) · imho.run