The Lost Son
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About The Lost Son
The Lost Son is a puzzle platformer about Sean and Belle, a couple who wake in a mysterious world while travelling to visit their son for his birthday. Lost and confused, they set out to discover where they are and where their son is. You switch between the two characters, whose different interactions with color are central to solving puzzles and progressing through the levels.
Color-based puzzles
The blue character can collide only with blue barriers, while the pink character can collide only with pink barriers. You use both characters’ abilities to get through the stages.
Play alone or together
In solo mode, you switch between the characters and use each one’s attributes and abilities to advance. In co-op, two players work together to beat the stages; the game enters split-screen when a controller is connected. Co-op currently requires one player to use a keyboard and mouse and the other to use a controller.
Frequently asked questions
Yes. The Lost Son is free to play on Steam, so there is nothing to buy to start playing.
The minimum requirements for The Lost Son are: Intel HD Graphics 620, Intel Core i5-7200U, 8 GB RAM, 217 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. The Lost Son is a single-player game.
Mostly, yes. Valve rates The Lost Son as Playable on the Steam Deck: it runs, but may need some manual setup.
Yes. The Lost Son is the full base game. You need nothing else to play it.













