Choose Signal Decay
Choose Signal Decay if you want a Strategy, Adventure, and Early Access game with Online PvP and Online Co-op. Signal Decay launched in 2019.
Signal Decay vs Mr. Sun's Hatbox
Signal Decay and Mr. Sun's Hatbox both land in Action, Indie 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, Indie on Steam. Signal Decay (2019) is 4 years older than Mr. Sun's Hatbox (2023). Signal Decay is currently ~7% cheaper on Steam than Mr. Sun's Hatbox (13.99 USD vs. 14.99 USD). 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 Mr. Sun's Hatbox
Choose Mr. Sun's Hatbox if you want the Shared/Split Screen and Steam Leaderboards side of the pairing. On Steam, it's the newer release (2023) and ships with the modern feature baseline. Mr. Sun's Hatbox launched in 2023.
Both Signal Decay and Mr. Sun's Hatbox sit in Action and Indie on Steam and both list Multi-player, Shared/Split Screen PvP, and Shared/Split Screen Co-op, 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
 Signal Decay |  Mr. Sun's Hatbox | |
|---|---|---|
| Released | 2019 | 2023 |
| Genres | Action, Strategy, Indie, Adventure, Early Access | Action, Indie |
| Platforms | Windows, macOS | Windows, macOS |
| Steam Deck | Unrated | Deck Verified |
| Price | 13.99 USD | 14.99 USD |
| Steam reviews | 6 reviews | 87% positive (193 reviews) |
| Multiplayer | Multi-player, Online Co-op, Shared/Split Screen Co-op | Multi-player, Shared/Split Screen Co-op, Co-op |
| Developers | Nela System | Kenny Sun |
Side by side
- Both share Action, Indie on Steam.
- Signal Decay (2019) is 4 years older than Mr. Sun's Hatbox (2023).
- Signal Decay is currently ~7% cheaper on Steam than Mr. Sun's Hatbox (13.99 USD vs. 14.99 USD).
- Both support cooperative play.
- Mr. Sun's Hatbox is Deck Verified on Steam Deck; Signal Decay has no Deck rating yet.
Signal Decay vs Mr. Sun's Hatbox — FAQ
- Should I play Signal Decay or Mr. Sun's Hatbox first?
- If you want chronology, Signal Decay (2019) came out before Mr. Sun's Hatbox (2023). 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 Signal Decay and Mr. Sun's Hatbox similar?
- They overlap on Action, Indie 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 Signal Decay and Mr. Sun's Hatbox have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Signal Decay ships Online Co-op, Shared/Split Screen Co-op; Mr. Sun's Hatbox ships Shared/Split Screen Co-op, Co-op.