Players
Player License
TheTowerSDK itself is free for everyone to install and use — community tools, personal projects, or commercial apps.
Separately, Tower players can get Agentic Cognition Substrate for free for personal, non-commercial Tower work. That grant is tied to your in-game Player ID.
TheTowerSDK
Free for everyone
Install from npm and build. No Player ID needed for the SDK.
ACS for Tower players
Personal grant
Optional AI governance tooling for your own local Tower projects. Not the same thing as the SDK.
Request Free Personal ACS
In The Tower: Settings → Player ID (digits). Used only to confirm you play and to bind the grant.
A key may not be granted to accounts with no meaningful play history.