Mage Tank has similar wacky vibes. It's an isekai esque litrpg. Main character stumbles on a way to get extra stats and dumps them all into his constitution, ending up with absurd Regen. The story revolves around dungeon delving as a larger overarching threat emerges. He's also a bit of a braggart. I recommend the audio book, Daniel wisniewski has excellent delivery.
There's Discount Dan, which feels like DCC but takes place in the backrooms. And all their equipment is a mix of junk and cosplay pieces. It's fun, but probably not quite as well written as the above or DCC.
I'll throw 1% life steal in here, though it's not very similar beyond being a progression fantasy. Audio book is also narrated by Wisniewski, which is how I came across it. People absorb a core thing that gives them an ability. MC gets one that sounds super lame, but finds some ways to game it.