Petri Mania: Getting Started
Tower defence in a petri dish: regulate giant colorful single-cell organisms. By Mail Bunny on itch.io.
Quick answer: Petri Mania: Getting Started. Tower defence in a petri dish: regulate giant colorful single-cell organisms. By Mail Bunny on itch.io. This guide covers Petri Mania on GameTio. Last verified Oct 11, 2026. Source-checked; not playtested by GameTio. See the sections below for the full details.
Source-checked · Not playtested. View sources
On this page
What is it?
Petri Mania by Mail Bunny is a small tower defence browser game on itch.io.
How do I play?
Place defences to regulate the amount of giant, colorful single-cell organisms in the lab, per the itch.io page.
See all guides or the game directory.
Frequently asked questions
Is this Petri Mania guide playtested?
No. This guide is source-checked from official and community sources, not playtested by GameTio.
Sources & verification Checked Oct 11, 2026
- Petri Mania — itch.io page Official source
Saved HTML reviewed locally on 2026-10-11; no gameplay test.