King of Slime

King of Slime is an idle RPG where players build a kingdom and command an army of slimes to fend off monstrous invaders. This game streamlines the RPG experience by automating combat, allowing you to progress and gather resources even while offline. The core appeal of King of Slime lies in its satisfying progression loop of collecting, merging, and upgrading a diverse roster of slimy heroes to unleash devastating attacks on waves of enemies.

Strategic Hero Deployment and Formation

Players begin each stage by strategically placing their collected slimes into a formation. The primary action involves dragging heroes from your collection into designated slots before a battle commences. Each slime type has a unique attack pattern and special ability, so formation composition is crucial for overcoming specific enemy types. Progression is measured by successfully clearing stages, which unlocks further areas of the map and provides the gold and gems needed for upgrades. This core loop of assembling a team and testing it in combat forms the foundation of King of Slime.

Merging Identical Slimes for Evolution

A central mechanic in King of Slime is the merging system. Players acquire numerous duplicate slimes through summoning and battle rewards. To increase a slime’s power and rarity, you drag two identical slimes onto each other from your inventory screen. This merging action evolves them into a single, more powerful version with enhanced stats and often a new visual appearance. This evolution system provides a clear and visually rewarding path for strengthening your army, directly impacting your ability to tackle higher-level content.

Idle Battle Rewards and Offline Progression

Even when the app is closed, King of Slime continues to generate rewards. After being away, players return to a summary screen showing the gold earned from automated battles fought in their absence. Tapping a "Claim" button collects all accumulated resources. This idle income is vital for funding continuous upgrades and summoning new slimes. The feature ensures that your progression in King of Slime never truly stops, making it ideal for players who prefer incremental advancement without constant active play.

Special Attack Activation and Timing

During active combat, players are not entirely passive. As your slimes attack, a special skill gauge gradually fills. Once full, a large icon appears on the screen. Tapping this icon immediately unleashes a powerful area-of-effect ability unique to your currently equipped special skill. This active element adds a layer of engagement, allowing players to strategically time these devastating blows to clear dense enemy waves or target powerful bosses, which is a key tactic for overcoming difficult stages in King of Slime.

Summoning New Slimes with Gems

Acquiring new heroes is done through the summoning feature. Players spend gems, earned from quests and stages, to perform summons. This action is performed by navigating to the summoning altar and selecting the number of pulls you wish to perform. The game then reveals the acquired slimes, which can range from common units to rare and powerful S-tier heroes. This gacha-style system provides a compelling incentive for resource collection, as new, stronger slimes significantly boost your army's potential in King of Slime.

Boss Raid Challenges and Co-op Play

King of Slime features periodic boss raids that offer substantial rewards. Players engage by selecting the raid event and then battling a high-health-point boss within a time limit. These encounters test the maximum damage output of your slime formation. Some raid modes allow for cooperative play, where multiple players contribute damage to the same boss target. Successfully defeating a raid boss yields rare upgrade materials and gems, providing an endgame goal and a reason to continually optimize your team composition.