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Download once
Run KosmicLauncher.exe. It installs Kosmic and keeps future builds current automatically.
A grounded dark-fantasy world that remembers your party. Explore together, make consequential choices, and let a live Dungeon Master answer whatever you attempt.
A large Windows download — the launcher tells you how much space it needs before it starts.
Run KosmicLauncher.exe. It installs Kosmic and keeps future builds current automatically.
The launcher verifies every release before installing it. The launcher is code-signed by Lee Berman through Microsoft's verified signing service; SmartScreen may still warn until the publisher has shipped enough signed releases.
Enter your six-character session code. Share it with friends and you enter the same remembered world together.