Games like Mysterious Treasure
Games like Mysterious Treasure include ELDEN RING NIGHTREIGN, Vampire Survivors, Bloons TD 6, Brotato, and Overcooked! 2. We matched them by the tags players give Mysterious Treasure on Steam (Casual, 4 Player Local, Singleplayer, Multiplayer, and Online Co-Op): closest matches first, and among equally close ones the better-known games.

ELDEN RING NIGHTREIGN
Shared: Multiplayer · Online Co-Op · Singleplayer

Vampire Survivors
Shared: Bullet Hell · Singleplayer · Casual

Bloons TD 6
Shared: Singleplayer · Multiplayer · Casual

Brotato
Shared: Singleplayer · Bullet Hell · Multiplayer

Overcooked! 2
Shared: Multiplayer · Casual · Online Co-Op

Castle Crashers®
Shared: Online Co-Op · Co-op · 4 Player Local

Risk of Rain 2
Shared: Multiplayer · Co-op · Online Co-Op

Gunfire Reborn
Shared: Online Co-Op · Multiplayer · Co-op

Terraria
Shared: Multiplayer · Survival · Pixel Graphics

Don't Starve Together
Shared: Multiplayer · Co-op · Survival

Ravenswatch
Shared: Online Co-Op · Co-op · Multiplayer

Children of Morta
Shared: Multiplayer · Online Co-Op · Pixel Graphics

Among Us
Shared: Multiplayer · Online Co-Op · Survival

Enter the Gungeon
Shared: Bullet Hell · Multiplayer · Pixel Graphics

Megabonk
Shared: Bullet Hell · Singleplayer · Roguelike

HELLDIVERS™ 2
Shared: Online Co-Op · Multiplayer · PvE

Dungeon Defenders
Shared: Multiplayer · Singleplayer · Online Co-Op

Stardew Valley
Shared: Multiplayer · RPG · Pixel Graphics

MONSTER HUNTER RISE
Shared: Online Co-Op · Multiplayer · Singleplayer

How to Fish
Shared: Multiplayer · Online Co-Op · Co-op

Pummel Party
Shared: 4 Player Local · Multiplayer · Online Co-Op

Apocalypse Party
Shared: Casual · Singleplayer · Online Co-Op

The Spell Brigade
Shared: Online Co-Op · Bullet Hell · Co-op

Valheim
Shared: Online Co-Op · Multiplayer · Survival