The ones from gemcraft & jacksmith are not a great problem^^

No they are simple to get but gemcraft takes alot of time to do. Jacksmith got repetitive and annoying after awhile. I am near the end of both of these games though, will be completing them soon.  Jacksmith is closer i have about 7 more levels left. Gemcraft i have like 20 until the last level. Then hopfully i can get the other 2 easy. The giant in trap one, which should be simple once i have leveled up from completing G7. Then the challenge amulet ones are done just need to finish the individual levels.