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Plunder Isles playtest
by IslandWare
Plunder isles is a co-op adventure game about looting cursed ancient temples on the high seas for fun and profit.
Anyone with a Steam account can join, and it's free.
- Access
- Instant
- On playtest since
- Oct 27, 2026
- Planned release
- 2026
- Developer
- IslandWare
- Platforms
- Windows, macOS
- Players
- Co-op, Multiplayer, Online co-op, Single-player
- Languages
- English
How to join the Plunder Isles playtest
- Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
- Use the Plunder Isles playtest signup there. You're in straight away, with nothing to pay.
- The playtest shows up in your Steam library, ready to install and play.
New to playtests? How Steam playtests work
How AI is used
This game uses generative AI for art
The developer's own words, from Steam.
About Plunder Isles
Objective
Plunder isles is a co-op game where you travel by sea to loot temples for treasure with your friends. Collect map fragments to advance the level and find the location of a priceless artifact.
Boating
Commandeer your trusty vessel with your friends to navigate dangerous waters in search of treasure on scattered isles. Defend it from sharks and rival bounty hunters to prevent meeting a watery grave. Enjoy luxurious below-cabin amenities.
Temples
Navigate ancient temples littered with traps and hostile forces in search of treasure and map fragments. Leave no explorer behind.
Shopping
Use the proceeds of your adventures to fund new equipment for the team. Weapons, utilities, and recreational items are all available.
From the game's Steam page.
