Play free. Paying removes ads and gives you more to build with.
$0 no account needed
Play as much as you like.
$19.99 once, yours for good
No ads, and more to build with.
$4.99 a month, or $39.99 a year
Yearly saves about a third: $39.99 instead of $59.88 for 12 monthly payments.
Your own place in the shared build world.
Supporter and World are separate, and you can have both. Prices are in US dollars; tax is added or included at checkout.
What it adds runs on your own computer, so it costs nothing to serve. World stores things on our servers, which costs money every month, so it's a subscription. Cancel any time.
Email us within 14 days of buying Supporter for a full refund. World runs to the end of the period you've paid for.
Classes and research plans are part of Erode Lab, our science lab, which has no ads and no games in it. See erodelab.com/pricing.