As a part of the Czech and Slovak Games Week sale event taking place between 15. - 22. November, you can now grab the game at a great price with 80% off!
Get your copy now:
https://store.steampowered.com/app/322680/BLACKHOLE/
https://store.steampowered.com/app/322700/BLACKHOLE_Testing_Laboratory/
https://store.steampowered.com/app/445920/BLACKHOLE_Original_Soundtrack/