Mono vs The Mystery of Happyville
Mono and The Mystery of Happyville both land in Indie, Violent, Gore 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 Indie, Violent, Gore on Steam. Mono (2017) is 1 year older than The Mystery of Happyville (2018). The Mystery of Happyville has co-op; Mono does not. No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Side-by-side comparison
 Mono |  The Mystery of Happyville | |
|---|---|---|
| Released | 2017 | 2018 |
| Genres | Indie, Violent, Gore | Action, Indie, Adventure, Casual, Violent, Gore |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Price unknown | 4.99 USD |
| Steam reviews | 85.7% positive (21 reviews) | 4 reviews |
| Multiplayer | Single-player only | Multi-player, Shared/Split Screen Co-op, Co-op |
| Developers | JeliLiam | Studio HK |
Side by side
- Both share Indie, Violent, Gore on Steam.
- Mono (2017) is 1 year older than The Mystery of Happyville (2018).
- The Mystery of Happyville has co-op; Mono does not.
Mono vs The Mystery of Happyville — FAQ
- Should I play Mono or The Mystery of Happyville first?
- If you want chronology, Mono (2017) came out before The Mystery of Happyville (2018). 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 Mono and The Mystery of Happyville similar?
- They overlap on Indie, Violent, Gore 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.
- Does Mono have multiplayer like The Mystery of Happyville?
- No. The Mystery of Happyville supports multiplayer on Steam (Multi-player, Shared/Split Screen Co-op, Co-op), while Mono is listed as single-player only.