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.

The Elo System Adapted
Most modern strategy games utilize a modified version of the Elo rating system, originally designed for professional chess.
If the system matches you perfectly, you should mathematically have a 50% chance of winning every single game you play.
- The algorithm does not care what deck you are playing.
- With millions of players, you will occasionally draw a bad matchup.
- In the lower arenas, the system often includes ‘bots’.
The Problem of Card Levels
The standard Elo system works perfectly for chess because all pieces are equal, but tower rush games feature upgradeable cards.
The system will try its best to match you with someone who has the same trophies AND a similar tower level.
| Player Perception | How it Actually Works |
|---|---|
| The Loser’s Queue | The algorithm does not force losses; you are simply playing tilted against harder opponents because your MMR is inflated |
| Anti-Strategy Code | Developers have confirmed repeatedly that the algorithm does not read the contents of your deck when finding an opponent |
Maintaining Competitive Integrity
This is why all true esports tournaments and competitive challenges utilize the ‘Tournament Standard’ ruleset.
Trust the math, ignore the conspiracy theories, and focus on improving your own gameplay.