Choose Sonic Mania
Choose Sonic Mania if you want a Casual game with Shared/Split Screen PvP and PvP. On Steam, it's Steam Deck Verified, so handheld play works out of the box. 13,860 Steam reviews back the pick.
Sonic Mania vs Unless
Sonic Mania and Unless both land in Action, 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 share Action, Adventure on Steam. Sonic Mania (2017) is 8 years older than Unless (2025). Unless scores higher on Steam reviews (97.3% 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.
Which should you pick?
Choose Unless
Choose Unless if you want an Indie and Free To Play game with Adjustable Text Size, Color Alternatives, and Camera Comfort. On Steam, it's free to play, so the barrier to trying it is zero. Unless launched in 2025.
Both Sonic Mania and Unless sit in Action and Adventure on Steam and both list Multi-player, Shared/Split Screen, and Steam Leaderboards, 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
 Sonic Mania |  Unless | |
|---|---|---|
| Released | 2017 | 2025 |
| Genres | Action, Adventure, Casual | Action, Indie, Adventure, Free To Play |
| Platforms | Windows | Windows, macOS, Linux |
| Steam Deck | Deck Verified | Deck Playable |
| Price | 4.99 USD | Free to play |
| Steam reviews | 93.4% positive (13,860 reviews) | 97.3% positive (75 reviews) |
| Multiplayer | Multi-player, Shared/Split Screen Co-op, Co-op | Multi-player, Shared/Split Screen Co-op, Co-op |
| Developers | Christian Whitehead, Headcannon, PagodaWest Games | Bellwood Studios |
Side by side
- Both share Action, Adventure on Steam.
- Sonic Mania (2017) is 8 years older than Unless (2025).
- Unless scores higher on Steam reviews (97.3% positive) than Sonic Mania (93.4% positive).
- Unless is free; Sonic Mania is paid (4.99 USD).
- Both support cooperative play.
- Steam Deck: Sonic Mania is Deck Verified, Unless is Deck Playable.
Sonic Mania vs Unless — FAQ
- Should I play Sonic Mania or Unless first?
- If you want chronology, Sonic Mania (2017) came out before Unless (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 Sonic Mania and Unless similar?
- They overlap on Action, 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.
- Do both Sonic Mania and Unless have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Sonic Mania ships Shared/Split Screen Co-op, Co-op; Unless ships Shared/Split Screen Co-op, Co-op.
- Is Unless free?
- Yes — Unless is a free-to-play Steam title. Sonic Mania is paid (4.99 USD).