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.
The Elo System Adapted
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.
- Understand that a 50% win rate is normal.
- Patience is required.
- If you drop trophies, the algorithm matches you against easier opponents.
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.
| System Priority | Importance Level |
|---|---|
| Current Rank | The system will always prioritize finding an opponent within a 50-trophy range |
| King Level / Card Levels | The system tries to match levels, but will abandon this check if the queue takes longer than 10 seconds |
Maintaining Competitive Integrity
Because the ladder algorithm must balance queue times against fairness, it will never be perfectly balanced.
The algorithm is blind; it only respects victory.