Rating Legion TD 2 uses an Elo rating system. Your rating change at the end of each game is based on: Your team rating Their team rating Whether you win or lose Your rating increases if you win and decreases if you lose. The amount that your rating changes depends on the difference between your team rating and their team rating. The harder your opponent, the more your rating increases if you win and the less your rating decreases if you lose. We intentionally use an outcome-based (win/loss) rating system rather than a performance-based (value, income, leaks, etc.) rating system. An outcome-based system cannot be gamed, doesn't create sub-optimal incentives, accounts for intangibles such as positive attitude and teamwork, and properly rewards selfless players. Your overall rating is used for matchmaking and most achievements and rewards. Legion-specific ratings are for bragging rights and proof of expertise. New player adjustments If you are a new player with fewer than 20 games, your rating gain/loss will be 2x the standard amount. This helps new players and smurfs converge to their proper rating faster. If you are partied with a new player with fewer than 20 games, your rating gain/loss will be 0.5x the standard amount. This makes it less punishing to help introduce your friend to the game and also discourages players from smurf boosting. Matchmaking Legion TD 2 matchmakes games based on: The fairness of teams (tries to find evenly-matched teams) The rating differences of parties (tries to find closely-rated parties) Time spent waiting in queue The longer players wait, the more likely the matchmaker is to allow uneven games. Even if games are uneven, your rating change accounts for differences in skill. Party adjustments account for communication and strategic advantages that partied players have. 2-player party: +20 rating (two 1200s duoing are treated as 1235) 3-player party: +40 rating 4-player party: +70 rating Additional adjustment based on how much rating variance there is in your party. A party with players that are exactly the same rating will have an additional adjustment of +0.