If this system fails, the game becomes a frustrating, unplayable mess that bleeds players instantly.
This article explores how developers design these algorithms to keep queue times short while maintaining a competitive environment.
Trophy and Rating Systems
The algorithm's primary goal is to match you against someone with the exact same—or very similar—trophy count.
If the system matches you perfectly, you should mathematically have a 50% chance of winning every single game you play.
- There is no 'anti-deck' conspiracy.
- With millions of players, you will occasionally draw a bad matchup.
- It helps them learn before facing real humans.
Level-Based Matchmaking
The standard Elo system works perfectly for chess because all pieces are equal, but tower rush games feature upgradeable cards.
However, if no such player is available, the algorithm will prioritize queue speed over level fairness, resulting in those frustrating, mismatched games.
| System Priority | Weight |
|---|---|
| Trophy Count | The system will always prioritize finding an opponent within a 50-trophy range |
| King Level / Card Levels | Secondary Priority |
True Fairness
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.