20XX is available for Windows on Steam for $14.99. Catlateral Damage is available for Windows, Mac, & Linux on Steam and for PlayStation 4 for $9.99.

Windows PC versions of Go Home Dinosaurs and Slam Bolt Scrappers can be purchased for $9.99 each via Steam. If you want BOTH games (and you do) you can buy the Fire Hose Games Bundle for $14.99 (a 25% savings!)

20XX on Steam!
Catlateral Damage on Steam!
King Kaiju on Steam!
Go Home Dinosaurs on Steam!
Slam Bolt Scrappers on Steam!