引用自 MrL0G1C：

Run all games together for ten+ minutes (2 hour setting), close program, rinse repeat.

I had left all games to idle for 2 hours last night so I have 2h+ playtime on all of 'em.

So, yesterday I tried skipping games every 5 seconds and I would get a drop every time, after I got like 30 drops I closed the program. I tried this method many times today but it wouldn't work anymore, any help?

aw ok thanks

so Idle Master only gives you 4 cards per game?

I used Idle Master yesterday and something weird happened.In my inventory there are about 13 cards remaining but in Idle Master it says that 3 drops are remaining!Also in insurgency I've got 2 cards of 6 collected but It aslo says I got 'em all!In ARMA 3 I've got only 2 cards and i have one of them 3 times!It seems that only killing floor idling is working.Can someone explain to me what's going on?