Sea Urchin Forest

Gather to start!

What is it?

Play Sea Urchin Forest free — a carpet of slow spines, then denser forests, more spines. Hire termites and watch passive Spines grow even while you're away…

How to play

1. Gather the glowing centre to earn your first Spines.

2. Open the Colony tab and buy your first Termites to start earning automatically.

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

Why you'll love it

✦ Signature Swarm Colonies scene — a carpet of slow spines.

✦ Six tiers of colony from Termites to Termite Lord.

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

Play Sea Urchin Forest free

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