Played just under 2 hours and while it certainly isn't terrible (really enjoyed the presentation and the guns felt good to shoot), there was something off about the gameplay. Surviving hordes of enemies at the end of a mission where they spawn in gradually with no real indicator of progress felt bad. You just had a mark at the top of the screen saying Purge the Heretics, and had to shoot the same enemies spawning in for what always felt like an excessive period of time. When I think back to why Doom worked for me it was frequently the level design that gripped me. In Boltgun, at least from what I played, it never felt all that fun to explore. Just walking down hallways shooting really easy to kill AI. If it gets better that's great, but after two short sessions I've felt no desire to revisit this game.