Mega incremental/idle games nerd here
Universal Paperclips is actually an exception, most incremental games actually use this mechanic and end up with infinite+ playtime because of it
Some have multiple layers of retirements, like you’ll retire again and again, for more rewards, faster and faster, until you unlock Retirement+ that resets everything including previous retirement rewards for a much better Mega Retirement reward
There’s a fun game called Prestige Tree Rewritten that’s only about this
Incremental games on phones are often bad, I found Grimoire bland as hell (still spent 10 hours on it)
I would recommend two of them that ate my life for a long while:
- Kittens, which has multiple resources to manage with hard caps. It’s slowly expanding and very rewarding
- Idle Skilling which is the opposite. Maximalist chaos. Very confusing and overwhelming, it barely makes any sense, it’s filled with a ton of weird mechanics and secrets… The person who made it was pretty young and just threw everything into it. It’s naive art, genuinely one of my favorite games