Serious Sam is great. My hot take is that the modern Doom is more of a spiritual successor to Serious Sam than Doom.
Also, Ruinarch early access is out. Might deserve its own thread, considering we were one of the main hubs for That Which Sleeps, which Ruinarch has some thematic similarities to. It's not really similar gameplay-wise, the joke (which is very accurate) is that it's basically Rimworld where you play as Randy Random. You place your portal in a small, randomly generated map with a town, some of the later ones have multiple connected maps and multiple towns, the most people I've seen on a map was 25 in one huge town.
You've got spells, demons, various stuff, and your goal is to kill everybody. There's very little structure at the moment, you have lots of options for killing people and as it stands the game is basically just a sandbox where you make your own fun. You can easily just blow everybody up and kill them that way, but that's not really very fun. NPCs have character classes and various traits, and you can manipulate people's traits to give them bad ones, ranging from stuff like being easily angered to vampirism, zombie virus, serial killers, etc. If you play your cards right you can get everybody killing each other over real and imagined crimes (there's a building called the Eye that gives you an event log and lets you store and reveal lines from it to people, e.g. you get a married villager to cheat on his wife and then tell the wife about it).
In practice not much about it works yet. The monsters you have are mostly useless, even your demons will lose 1v1 to a villager. You can brainwash cultists but it doesn't accomplish much. Spells can wipe the village out easy, but that's not fun. Have never seen zombies or plague work well, since the monsters are so weak the zombies just die and maybe infect one person, leading to more of a slow chain of infections rather than exponential takeoff apocalypse. Right now I'd say it's not a buy.