Fallen Doll v1.29 and prior had no DRM.
Fallen Doll v1.30 introduced DRM, but it was trivial to get the new content running off the v1.29 .exe.
Fallen Doll v1.31 has the same DRM, but changes to the engine mean it can't run off the v1.29 .exe anymore, making v1.30 the last one we can use freely without the DRM being cracked.
The first post in this thread has download links for the 'cracked' v1.30, which is playable without a key.
