We're live on Kickstarter looking for funds to make a much bigger game! With a Single Player Campaign and perhaps Multiplayer Modes as well! Join us!
And we have also made public the Survival Mode and for FREE:
https://store.steampowered.com/app/802200/Hellbound_Survival_Mode/
Thanks for your support!
Tobias Rusjan and the team at Saibot Studios