The matchmaking algorithm is the unsung hero that determines exactly who you will face every time you press the ‘Battle’ button.

This article explores how developers design these algorithms to keep queue times short while maintaining a competitive environment.

How You Are Ranked

Most modern strategy games utilize a modified version of the Elo rating system, originally designed for professional chess.

This is why winning streaks inevitably end in a ‘wall’ of difficult matches; the system is functioning exactly as intended.

• Do not expect to win every game.
• Queue times increase at the top of the ladder.
• If you drop trophies, the algorithm matches you against easier opponents.

Level-Based Matchmaking

The standard Elo system works perfectly for chess because all pieces are equal, but tower rush games feature upgradeable cards.

To combat this, developers have implemented secondary checks that look at the player’s King Tower level.

The Esports Standard

By artificially capping all card levels to a specific number, the algorithm can rely purely on the Elo rating.

The algorithm is blind; it only respects victory.