If you already own Bancroft Academy on Steam, Signed in Secret will be free for you.
That deal is only for the Steam copy. The free Bancroft Academy download on itch.io does not count. Everyone else pays $10 one time when Episode I comes out on Patreon or itch.io.
Episode I is still in production. Right now that means scene integration, rendering, and interface polish. No build is out yet.
When builds exist, paying on Patreon gets them to you sooner. Everyone plays the same game. No scenes locked behind a higher tier. Patreon is monthly, and you can cancel anytime.
18+
