Choose Bulby - Diamond Course
Choose Bulby - Diamond Course if you want the Shared/Split Screen PvP and PvP side of the pairing. On Steam, it's currently about 90% cheaper on the Steam Store. Bulby - Diamond Course launched in 2017.
Bulby - Diamond Course vs War Islands: A Co-op Adventure
Bulby - Diamond Course and War Islands: A Co-op Adventure both land in 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 Indie, Adventure on Steam. Bulby - Diamond Course (2017) is 3 years older than War Islands: A Co-op Adventure (2020). War Islands: A Co-op Adventure scores higher on Steam reviews (63.6% positive) than Bulby - Diamond Course (47.8% 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 War Islands: A Co-op Adventure
Choose War Islands: A Co-op Adventure if you want an Action, Casual, and Early Access game with Online Co-op. On Steam, it's the newer release (2020) and ships with the modern feature baseline. War Islands: A Co-op Adventure launched in 2020.
Both Bulby - Diamond Course and War Islands: A Co-op Adventure sit in 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
 Bulby - Diamond Course |  War Islands: A Co-op Adventure | |
|---|---|---|
| Released | 2017 | 2020 |
| Genres | Indie, Adventure | Action, Indie, Adventure, Casual, Early Access |
| Platforms | Windows, macOS, Linux | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 1.99 USD | 19.99 USD |
| Steam reviews | 47.8% positive (23 reviews) | 63.6% positive (11 reviews) |
| Multiplayer | Multi-player, Shared/Split Screen Co-op, Co-op | Multi-player, Online Co-op, Shared/Split Screen Co-op |
| Developers | Rafael Senne | Biduba Version |
Side by side
- Both share Indie, Adventure on Steam.
- Bulby - Diamond Course (2017) is 3 years older than War Islands: A Co-op Adventure (2020).
- War Islands: A Co-op Adventure scores higher on Steam reviews (63.6% positive) than Bulby - Diamond Course (47.8% positive).
- Bulby - Diamond Course is currently ~90% cheaper on Steam than War Islands: A Co-op Adventure (1.99 USD vs. 19.99 USD).
- Both support cooperative play.
Bulby - Diamond Course vs War Islands: A Co-op Adventure — FAQ
- Should I play Bulby - Diamond Course or War Islands: A Co-op Adventure first?
- If you want chronology, Bulby - Diamond Course (2017) came out before War Islands: A Co-op Adventure (2020). 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 Bulby - Diamond Course and War Islands: A Co-op Adventure similar?
- They overlap on 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 Bulby - Diamond Course and War Islands: A Co-op Adventure have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Bulby - Diamond Course ships Shared/Split Screen Co-op, Co-op; War Islands: A Co-op Adventure ships Online Co-op, Shared/Split Screen Co-op.