AltStack Game Producer 0.1.3

AltStack Game Producer 0.1.3. Every installer below was launched on its own platform before this release was published.

macOS builds are not notarized yet: after downloading, approve the app once in System Settings > Privacy & Security > Open Anyway (or run: xattr -dr com.apple.quarantine "/Applications/AltStack Game Producer.app").
Verify a download with the .sha256 file next to it.