Primordial - idle evolution sim where you seed alien planets and try to guide species toward intelligence. Free browser alpha, would love feedback
Hey everyone, I've been working on an idle/simulation game called Primordial and just put the alpha up on itch. Wanted to share it here because this community seems like exactly the right audience.
The basic idea is that you're an ancient probe AI that lands on a barren planet and seeds it with five primordial organisms. Then evolution takes over. Species mutate, compete, hunt each other, spread to new biomes, and occasionally develop abilities like air breathing or pack hunting. Your job is to guide things by deploying catalysts that shape evolutionary pressure, protecting promising species, and trying to get something smart enough to look up at the stars.
The simulation underneath is real, not scripted. There's no tech tree where you click "unlock lungs." Species actually have 12 continuous traits that drift through mutation, and abilities emerge when the right combination of traits crosses a threshold. Every playthrough produces a completely different ecosystem.
It's rough. It's an alpha. Some things definitely don't work yet and I'm still figuring out the fun factor honestly. But the core simulation is solid and there are moments where it clicks, like when a species you've been nurturing for an hour finally unlocks an ability.
A few things I'd really like to know from anyone who tries it:
When do you get bored? Like at what point do you close the tab and not want to come back?
Do the catalysts make sense? Can you tell what they actually do to your ecosystem?
Do you care about any of your species or are they all just names on a list?
What information do you wish the game showed you that it doesn't?
Link: https://thebeesknees13.itch.io/primordial
Runs in browser, no download needed. Thanks to anyone who gives it a shot.
Posted Apr 9, 2026, 7:55 PM UTC