Choose Castle on the Coast
Choose Castle on the Coast if it's Steam Deck Verified, so handheld play works out of the box. Castle on the Coast launched in 2021.
Castle on the Coast vs MONOWAVE
Castle on the Coast and MONOWAVE both land in Action, Indie, 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, Indie, Adventure on Steam. Castle on the Coast (2021) is 5 years older than MONOWAVE (2026). Castle on the Coast scores higher on Steam reviews (96.2% positive) than MONOWAVE (90.9% 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 MONOWAVE
Choose MONOWAVE if you want a Casual game with DualShock Controller Support, DualSense Controller Support, and Gamepad Recommended. On Steam, it's currently about 40% cheaper on the Steam Store. MONOWAVE launched in 2026.
Both Castle on the Coast and MONOWAVE sit in Action, Indie, and Adventure on Steam and both list Multi-player, Shared/Split Screen, 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
 Castle on the Coast |  MONOWAVE | |
|---|---|---|
| Released | 2021 | 2026 |
| Genres | Action, Indie, Adventure | Action, Indie, Adventure, Casual |
| Platforms | Windows, macOS | Windows, macOS |
| Steam Deck | Deck Verified | Unrated |
| Price | 14.99 USD | 8.99 USD |
| Steam reviews | 96.2% positive (106 reviews) | 90.9% positive (33 reviews) |
| Multiplayer | Multi-player, Shared/Split Screen Co-op, Co-op | Multi-player, Shared/Split Screen Co-op, Co-op |
| Developers | Big Heart Productions | Studio BBB Inc. |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Castle on the Coast (2021) is 5 years older than MONOWAVE (2026).
- Castle on the Coast scores higher on Steam reviews (96.2% positive) than MONOWAVE (90.9% positive).
- MONOWAVE is currently ~40% cheaper on Steam than Castle on the Coast (8.99 USD vs. 14.99 USD).
- Both support cooperative play.
- Castle on the Coast is Deck Verified on Steam Deck; MONOWAVE has no Deck rating yet.
Castle on the Coast vs MONOWAVE — FAQ
- Should I play Castle on the Coast or MONOWAVE first?
- If you want chronology, Castle on the Coast (2021) came out before MONOWAVE (2026). 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 Castle on the Coast and MONOWAVE similar?
- They overlap on Action, Indie, 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 Castle on the Coast and MONOWAVE have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Castle on the Coast ships Shared/Split Screen Co-op, Co-op; MONOWAVE ships Shared/Split Screen Co-op, Co-op.
- Does Castle on the Coast run on Steam Deck?
- Yes — Castle on the Coast is rated Deck Verified by Valve. MONOWAVE doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.