IMHO.

Incremental Cubes vs Idle Sphere

Incremental Cubes and Idle Sphere both land in Simulation, Free To Play 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 Simulation, Free To Play on Steam. Incremental Cubes (2021) is 3 years older than Idle Sphere (2024). Incremental Cubes scores higher on Steam reviews (68% 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 Incremental Cubes

Choose Incremental Cubes if you want a RPG experience. On Steam, it carries the stronger Steam consensus at 68% positive across 803 reviews.

Choose Idle Sphere

Choose Idle Sphere if you want a Strategy, Indie, and Casual experience. On Steam, it's the newer release (2024) and ships with the modern feature baseline. Idle Sphere launched in 2024.

Both Incremental Cubes and Idle Sphere sit in Simulation and Free To Play 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

Incremental Cubes vs Idle Sphere — Steam metadata comparison
Incremental Cubes — Steam game coverIncremental CubesIdle Sphere — Steam game coverIdle Sphere
Released20212024
GenresSimulation, RPG, Free To PlayStrategy, Indie, Simulation, Free To Play, Casual, Early Access
PlatformsWindowsWindows, macOS
Steam DeckDeck UnsupportedDeck Unsupported
PriceFree to playFree to play
Steam reviews68% positive (803 reviews)43.5% positive (200 reviews)
MultiplayerSingle-player onlySingle-player only
DevelopersIdle System, Inc.Idle System, Inc., Yayu

Side by side

Incremental Cubes vs Idle Sphere — FAQ

Which is better, Incremental Cubes or Idle Sphere?
On Steam reviews Incremental Cubes scores higher (68% positive) than Idle Sphere (43.5% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Incremental Cubes is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
Should I play Incremental Cubes or Idle Sphere first?
If you want chronology, Incremental Cubes (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 Incremental Cubes and Idle Sphere similar?
They overlap on Simulation, Free To Play 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.
Incremental Cubes vs Idle Sphere — Verdict (2026) · imho.run