Download size

How many GB is Soul Interface?

4 GB

Leave at least 10 GB free: games need headroom to unpack updates.

The figure is the storage Steam lists as required for this game, not a measured download.

You explore an alien machine, learn to operate it, create virtual organisms, and grow an artificial ecosystem inside it. You design species down to individual atoms and watch them fight for survival. You then send successful species to other players to leech energy from them and power your machine.