World of Slime is a casual MMORPG from TEAM42 set in a world where mutant slimes suddenly appeared and people retreated into guarded villages. Your hero can capture slimes, and the whole game is built around that.

Slimes come from field captures, synthesis and fishing, and every one you meet goes into the Slimepedia: more knowledge means more skills for you and hidden traits for your slimes. A partner slime fights beside you and helps you travel, swimming or pulling a sled. There are villager quests, hunts for strong slimes, 1v1 and team PvP, and the developers say there is no gacha.

It suits players who like collecting creatures at a relaxed pace. A Steam demo has been open since 26 August 2026, with a global launch on PC and mobile planned for December 2026. Demo bugs have already forced some rollbacks.