Well I was thinking what about characters gaining \"experience\" while fighting side by side with other people. To make it more clear I\'ll give example:
Let\'s say there are 4 characters... umm... Bob, Boo, Lemon and Bus_driver who team up to finish a quest or something. While doing so they meet some monsters and while fighting them, they gain specific experience, which will raise their fighting skills, but only when the party is built from those 4 characters.
Now if someone leaves the party, the fighting skills will get back to normal. Characters also lose some of their exp while fighting side by side with other people.
And so Lemon decides to leave the party for a while and teams up with Lime and Lawnmower,while Bob, Boo and Bus_driver stay together and keep bashing monsters. From this point, Lemon will lose some of experience of the previous party
the amount of lost experience is proportional to number of people in your current party, who didn\'t belong to first one.
Lemon is now in party built from him, Lime and Lawnmower. They bash lots of monsters and thus Lemon loses experience gained in first party, while gaining experience in current one. But after some time Lawnmower has to... Lawnmowe irl, thus leaves party. Lemon and Lime bash monsters alone now. They don\'t lose experience gained in party, but Lemon loses experience from his first party (however slower now).
When all players are back together, the skills go up according to experience gained earlier.
Lawnmower isn\'t coming back for few hours now, so Lemon got pissed and went back to his first party. Now Bob, Boo, Lemon and Bus_driver are together again (yes, they\'re still online after all these hours... do you expect people with names like that to have life?). Bob, Boo and Bus_driver get their exp back to old level (they didn\'t lose it since they didn\'t team up with any new people), while Lemon has lowered experience. Note: now that Lemon is back, others will be losing experience from their party
This shows that by fighting side by side, characters know each other\'s fighting style and if they\'re experienced enough - they can fight as one.
Lemon, Bob, Boo and Bus_driver meet party of Orange, Banana, Helpimnoob and Peanut. Everyone are equally strong, however the party has less experience fighting together. Both parties decide to fight and even tho\' their strength is same, Lemon\'s party will win with ease since they are better at fighting together.
The less people in party, the faster the experience goes up.
Finally Lawnmower is back and he teams up with Lime again. They fight as much as party, however get much more party experience. That\'s because of fact that their party is smaller
ok, I think that\'s all.... simple, isn\'t it?