Sonic Mania and 西西弗斯放置（Sisyphus Idle） both land in Casual 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 Casual games on Steam. Sonic Mania (2017) is 9 years older than 西西弗斯放置（Sisyphus Idle） (2026). 西西弗斯放置（Sisyphus Idle） scores higher on Steam reviews (100% positive) than Sonic Mania (93.4% positive). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Choose Sonic Mania if you want an Action and Adventure game with Multi-player, Shared/Split Screen, and Steam Leaderboards. On Steam, it's Steam Deck Verified, so handheld play works out of the box. 13,860 Steam reviews back the pick.
Choose 西西弗斯放置（Sisyphus Idle） if it's currently about 85% cheaper on the Steam Store. 西西弗斯放置（Sisyphus Idle） launched in 2026.
Both Sonic Mania and 西西弗斯放置（Sisyphus Idle） sit in Casual 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.
 Sonic Mania |  西西弗斯放置（Sisyphus Idle） | |
|---|---|---|
| Released | 2017 | 2026 |
| Genres | Action, Adventure, Casual | Casual |
| Platforms | Windows | Windows |
| Steam Deck | Deck Verified | Unrated |
| Price | 19.99 USD | 2.99 USD |
| Steam reviews | 93.4% positive (13,860 reviews) | 100% positive (65 reviews) |
| Multiplayer | Multi-player, Shared/Split Screen Co-op, Co-op | Single-player only |
| Developers | Christian Whitehead, Headcannon, PagodaWest Games | Lazymangamestudio |