Download size

How many GB is The Killer?

10 GB

That is more than the typical Strategy game, which needs about 3 GB.

Leave at least 17 GB free: games need headroom to unpack updates.

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

Dominic, a hired assassin is hired to kill a farmer who is fighting over land with a wealthy local man, in the middle of your mission someone notices something strange and calls the police, so Dominic must face the cops to get out of the place without getting caught.