Hello Choo Choo Engineers, It's the one year anniversary of Choo Choo Survivor and a bunch of cool self published survivor devs have gotten together to make a bundle of awesome survivor games! Choo Choo Survivor is part of that bundle. When you buy the bundle you only pay for the games that you don't already own so it is a great way to get some awesome survivor games on a discount. Thanks for being an awesome audience over the last year! https://store.steampowered.com/bundle/42351/SelfPublished_Survivors/ Best Regards, GTGD