Download size

How many GB is Idle Startup?

0.24 GB

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

Leave at least 6 GB free: games need headroom to unpack updates.

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

Build a tech company from a one-person garage into a global empire. Train six skills, complete their upgrade trees, chase milestone bonuses, and unlock new departments in this clean, addictive incremental idle game — progress keeps rolling even while you're away.