Steamless is a DRM remover of the SteamStub variants. The goal of Steamless is to make a single solution for unpacking all Steam DRM-packed files. Steamless aims to support as many games as possible.
Steamless version : 3.0.0.12
Game : Outer Wilds v1.1.10
InvalidOperationException: Steamworks is not initialized.
at Steamworks.InteropHelp.TestIfAvailableClient () [0x0001d] in <39240a8fe65c45b593b909b47012dcb6>:0
at Steamworks.SteamApps.BIsDlcInstalled (Steamworks.AppId_t appID) [0x00000] in <39240a8fe65c45b593b909b47012dcb6>:0
Steamless version : 3.0.0.12 Game : Outer Wilds v1.1.10
Unpacks fine otherwise.