Download size

How many GB is Oil.exe?

1 GB

That is less than the typical Simulator game, which needs about 4 GB.

Leave at least 7 GB free: games need headroom to unpack updates.

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

Drill the wells. Run the refinery. Read the market. OIL is a free text-based simulation of running a petroleum operation, played at a 1980s green-phosphor terminal. End each year richer or bankrupt. Mind the bear market. Climb the leaderboard.