Where are all these Speedrunners copies coming from?

Bundlestars I think has a bundle with Speedrunners.

http://www.steamgifts.com/discussion/L6AWi/free-steam-tinybuildgames-key

you can get a random key, or you can be rly fast on the comment section to grab a key

1-BundleStars (5 games+speed Runners 4$)
2-The devs who made this game are giving away random keys and if u're lucky enough u'll get speedrunners