Download LDtk
Pay-what-you want,
including free.
You may use any content created with LDtk as you wish, even for commercial projects. No hidden fee: LDtk will always be free.
However, if you wish to contribute to the development, you can:
Previous LDtk releases
Auto-update note
Prior to version 1.1.2, the auto-update was mandatory and could not be disabled. So installing any build older than this one will just result in it being auto-updated to latest. You may block its download somehow (eg. by adding a rule to your firewall).