Socializing costs and privatizing benefits is a lousy combination.
Many games allow you to increase your difficulty and your reward. This could be explicit in the form of a difficulty dial tied to rewards, but it is more often an opportunity cost. For example, you might equip an item that improves your loot, but doing so forgoes equipping an item that improves your damage. The fight is marginally harder and your rewards are marginally better. Kingdom of Loathing is an example of a game that does both: there are ways to increase monster level, and you can also equip items that have +monster level instead of (or in addition to) stat bonuses.
Kingdom of Loathing is also a single-player game. City of Heroes similarly gives you tools to adjust mission difficulty, and it gives the same difficulty increase and reward increase to everyone.
Multiplayer games that allow individuals to equip +loot items allow those individuals to increase their rewards at a cost of increased difficulty to everyone on the team. Alice is a tank using best-in-slot gear for damage resistance while Bob is a healer using best-in-slot gear for improved loot drops; Alice is working harder and incurring more repair costs for Bob’s benefits. Alice’s only way to avoid players like Bob is to stick with known companions or be That Guy and demand to see your equipment before letting you into the group. If everyone or no one is wearing +loot gear, the situation is fair and both risks and rewards are shared. Allowing individuals to unilaterally increase group difficulty for personal benefit is a solid example of anti-social design. Continue reading
