Choose Boundless
Choose Boundless if you want an Action game with Online PvP and PvP. 1,316 Steam reviews back the pick.
Boundless vs Islet Online
Boundless and Islet Online both land in Indie, Adventure, Massively Multiplayer 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, Massively Multiplayer on Steam. Boundless (2018) is 1 year older than Islet Online (2019). Boundless scores higher on Steam reviews (73.6% positive) than Islet Online (69.9% 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 Islet Online
Choose Islet Online if it's free to play, so the barrier to trying it is zero. Islet Online launched in 2019.
Both Boundless and Islet Online sit in Indie, Adventure, and Massively Multiplayer on Steam and both list Multi-player, MMO, and Online 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
 Boundless |  Islet Online | |
|---|---|---|
| Released | 2018 | 2019 |
| Genres | Action, Indie, Adventure, Massively Multiplayer, RPG | Indie, Adventure, Massively Multiplayer, RPG |
| Platforms | Windows, macOS | Windows |
| Steam Deck | Deck Playable | Deck Playable |
| Price | 19.99 USD | Free to play |
| Steam reviews | 73.6% positive (1,316 reviews) | 69.9% positive (83 reviews) |
| Multiplayer | Multi-player, Cross-Platform Multiplayer, Online Co-op | Multi-player, Cross-Platform Multiplayer, Online Co-op |
| Developers | Monumental, LLC | Morenori Soft |
Side by side
- Both share Indie, Adventure, Massively Multiplayer on Steam.
- Boundless (2018) is 1 year older than Islet Online (2019).
- Boundless scores higher on Steam reviews (73.6% positive) than Islet Online (69.9% positive).
- Islet Online is free; Boundless is paid (19.99 USD).
- Both support cooperative play.
- Both are Deck Playable.
Boundless vs Islet Online — FAQ
- Should I play Boundless or Islet Online first?
- If you want chronology, Boundless (2018) came out before Islet Online (2019). 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 Boundless and Islet Online similar?
- They overlap on Indie, Adventure, Massively Multiplayer 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 Boundless and Islet Online have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Boundless ships Online Co-op, Co-op; Islet Online ships Online Co-op, Co-op.
- Is Islet Online free?
- Yes — Islet Online is a free-to-play Steam title. Boundless is paid (19.99 USD).