Do I Know You?

Yes. Do I Know You? is free to play on Steam, so there is nothing to buy to start playing.

The minimum requirements for Do I Know You? are: Windows 10, 256 MB RAM, 209 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.

No. Do I Know You? is a single-player game.

No. Valve rates Do I Know You? as Unsupported on the Steam Deck.

Yes. Do I Know You? is the full base game. You need nothing else to play it.