Both are getting removed August 31.
Windforge is a steampunk action/building sidescroller where you can carve up sky whales for essential materials and then fight off enemies with your crafted gear and contraptions.
Schein takes you for an atmospheric puzzle/platformer ride through a mystical swamp whose secrets are only visible to those smart and gifted enough to see beyond the veil.
The 75% discount will last until the games’ removal from the store, on August 31, 10 AM UTC.
Source:: GOG – Good Old Games