I tried playing some MyHordes a while ago, the community-owned successor to Motion Twin's old Die2Nite (english name) collaborative zombie survival browser game. A bunch of players try to survive as many days as possible through a zombie apocalypse, searching the wasteland for supplies, and building up their defenses, while taking care of their needs.

I loved the game back when I would play it constantly, and I still love it today, but I just don't have the time anymore. The AP system might seem like it makes the game quick, but the collaborative aspect means you have to talk to your fellow survivors, strategize, coordinate, communicate... for which I'm just not free enough.

I don't think I can see myself enjoy a singleplayer or competitve game like this. With the AP mechanic I mean. I've tried a few other games back in the day which used it, but it's always felt like too much of a limitation. An obstacle to actually having fun with the game. Die2Nite was the only exception, because it kept you busy otherwise throughout the day and turned the AP into an actual dynamic resource mechanic you had to strategize with, not just a limiter.