Slime King Siege

Rally to start!

What is it?

Play Slime King Siege free — a throne room of slimes, then split slimes drown you in ooze. Hire recruits and watch passive Ooze grow even while you're away…

How to play

1. Rally the glowing centre to earn your first Ooze.

2. Open the Party tab and buy your first Recruits to start earning automatically.

3. Spend on Boosts to multiply taps and specific party output.

Why you'll love it

✦ Signature Auto-Battler RPG scene — a throne room of slimes.

✦ Six tiers of party from Recruits to Phoenix.

✦ WebAudio sound with mute, haptics, reduced-motion — plays instantly, no download.

Play Slime King Siege free

No download. No sign-up. Just rally and play.