Download size

How many GB is 50 Rounds?

2.25 GB

That is less than the typical Shooter game, which needs about 8 GB.

Leave at least 8 GB free: games need headroom to unpack updates.

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

A round based zombie killing experience. Each wave will be harder than the last with bosses showing up at possibly the worst of times. Good luck you will need it.