According to Steam Community forum discussions at the time, the only change to the game is the removal of EA’s old DRM solution which reportedly caused the delisting in the first place. Surprisingly and without notice, Alice: Madness Returns was relisted on Steam on February 28th, 2022, over five years after it was originally removed. However, at least one user reportedly received a reply from Steam Support in late September of 2016 regarding the DRM implementation. Some suggested that Electronic Arts chose to remove the game from Steam, along with several others, to incentivize purchases from their own Origin service.
Alice: Madness Returns was delisted from Steam on or near September 7th, 2016.