Snag Warhammer 40k Gladius for free right now, but you don't have long

4X game Warhammer 40k: Gladius - Relics of War is free to keep on GOG right now, but you don't have long to snatch it up. So if you've got a hankering to explore, exploit, expand, and exterminate, now's the time to add Gladius to your library. With co-op and competitive modes, don't forget to round up some friends to take it for a spin, too. You can't argue when it's free.