Croixleur Sigma will be removed in 2 days. There will be a final sale starting tomorrow:
steamcommunity.com
steamcommunity.com
It's a nice Hack n' Slash in arena stages, and i think it was in a bundle.

Steam :: [Old Edition] Croixleur Sigma :: Croixleur Sigma will be Delisted from Steam on June 1st
If you have Croixleur Sigma in your wishlist, now might be a good time to pull the trigger! Our license to sell Croixleur Sigma has expired and delist the title from the Steam store and other distributors on June 1st.<br /> <br /> You can expect to see more Croixleur-related developments from...

Steam :: [Old Edition] Croixleur Sigma :: Sayonara Sale!
By popular demand: Croixleur Sigma and its OST will be 65% off over May 30-31st, prior to its delisting on June 1st!
It's a nice Hack n' Slash in arena stages, and i think it was in a bundle.