From novel new concepts to fresh takes on classics, these are the Coolest Demos from Steam Next Fest February 2026.

Edge of Tomorrow, The Matrix, and Aliens are all among the absolute best science fiction action movie masterpieces of all time.

Boldt Castle sits on Heart Island in the beautiful Thousand Islands. This massive stone castle has towers, turrets, and over 120 rooms. The architecture looks like something from a European storybook.