How does the battle system work?+
Battles feature auto-battle and turn-based modes with up to 5 heroes plus a pet and dragon companion. Heroes use abilities, combos build for massive damage multipliers, and critical hits trigger screen-shake effects. Each hero has unique AI-generated art that evolves dramatically across 6 rarity tiers — from common rags to mythic cosmic power. The 3D battle arena features themed environments matching the dungeon biome.
What are biomes?+
The world map has 30 biome stages, each with unique enemies, themes, and difficulty levels. Biomes range from forests and caves to astral planes and void citadels. Clear all enemies in a biome to unlock the next one. Boss fights appear every few stages.
How does the building system work?+
Your city has 20+ buildings including Tavern, Market, Lumber Mill, Quarry, Farm, Barracks, Blacksmith, Alchemist, Gem Mine, Guild Hall, Summoning Gate, Castle, City Walls, Towers, Pet Hatchery, Dragon Lair, Research Lab, Training Ground, Hospital, and more. Each produces resources or provides bonuses. Drag buildings to rearrange your city layout, watch villagers patrol with thought bubbles, and enjoy dynamic weather effects (rain, snow, falling leaves). The city features a day/night cycle and construction animations when buildings complete.
What is the dungeon crawling mode?+
Dungeon crawling is a first-person 3D exploration mode with procedurally generated floors rendered in Three.js WebGL. Navigate corridors with flickering torch lights, encounter monsters that appear at a distance, solve puzzles, find healing fountains, trade with merchants, and face dramatic boss encounters with cinematic intros. Features include auto-explore, room transition animations, trap effects, and themed dungeon biomes (frozen crypt, infernal halls, void sanctum, and more).
How do hero classes and synergies work?+
Heroes come in classes like Fighter, Ranger, Cleric, Sorcerer, Rogue, and more. Pairing specific classes together unlocks synergies — for example, Holy Shield (Cleric + Paladin) grants a defensive bonus, while Arcane Surge (Wizard + Sorcerer) boosts magic damage.
What are idle earnings?+
Kosmic Dungeon is an idle RPG — your heroes keep earning gold, resources, and XP even when you're offline. When you return, you collect accumulated rewards. Building upgrades and VIP level increase your idle earning rates.