For Lance, the incursion of monsters and a magical shop isn't as much of an apocalypse as an inconvenience.
Coming back from archery practice, Lance and his club are in the right place and right time to deal some mayhem for the spawning monsters. But just killing them as they come out of the portals isn't enough.
They're going to have to go in and finish the job.
Dungeon Incursions is a slow-moving apocalypse, where the system doesn't lead to societal collapse but changes in civilization itself. Not solo OP MC but team-based dynamics. Fans of post-apocalyptic and apocalyptic LitRPG fiction like Primal Hunter and Defiance of the Fall will be thrilled!
This includes books 1 through 5 of Dungeon Incursions.
LitRPG is one of those genres where plot and characters development often take a back seat to action, but this series takes that ho the extreme. It's basically just a long stream of combat scenes strung together with upgrade choices in between.
Writing quality is good KU-level for most of the series, but about half way through Book 5 the author decides to switch tense from narrative past tense to present tense, and then alternates weirdly between the two every few sentences. It's very off-putting and completely unnecessary. Dialogue is fine, with lots of gaming and some other pop-culture references, but at least the characters are consistent, if not really developed beyond their stereotypes.
Audiobook narration is solid, with excellent production. Character voices are fairly consistent. There are some minor mispronunciations, and the narrator has particular trouble with "cavalry".