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About
A 2D side-scrolling roguelike action RPG set in a fantasy world!
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Try it for free!
Explore procedurally generated dungeons in Deadly Wonderland. Collect new weapons, shields, and companions as you venture deeper into the dungeon. Discover a wide variety of items and enemies, and even recruit defeated enemies as companions. Upgrade your equipment and recruit stronger companions to reach even deeper floors.
This app features three game modes:
• PSI Masquerade – PvP battles using randomly assigned PSI abilities
• Transrealm Masquerade – PvP battles with your own equipment and companions
• Deadly Wonderland – A 2D side-scrolling roguelike action RPG with both online and offline play
• Play Solo
In Deadly Wonderland, AI companions will join you whenever no other players are available. A fully offline mode is also included.
In PvP, AI opponents can be added when there are not enough players. You can also practice against bots in Offline Battle Training, which follows the same rules as real PvP matches.
• Play Together
Deadly Wonderland supports up to 3-player co-op, while the PvP modes support battles with up to 6 players.
Use the companion web app to receive notifications when other players log in.
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What's New in PSI Masquerade DW
v0.00.029
July 22, 2026
Added autosave support. You can now resume from the same spot even if you close the app while exploring a dungeon. Added a Broadcast Terminal to the lobby. You can call all connected players to join a match, whether they are playing online or offline. The tutorial before initial registration can no longer be skipped. After reviewing the controls, you can proceed to the lobby.
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In-App Purchases
$6.99
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Realms: Angel, Devil + 4 Costume Sets










