Every match consists of 5 games. Each game is played on a different map with a different random seed. The team that wins more games wins the match.
Win conditions per game
A game ends when:
| Condition | Description |
|---|
| Core destroyed | One team’s core reaches 0 HP |
| Resigned | A team called resign() — their core is destroyed and they lose |
| Axionite collected | Tiebreaker 1: most total refined axionite delivered to the core |
| Titanium collected | Tiebreaker 2: most total titanium delivered to the core |
| Harvesters | Tiebreaker 3: most harvesters currently alive |
| Axionite stored | Tiebreaker 4: most axionite currently stored |
| Titanium stored | Tiebreaker 5: most titanium currently stored |
| Coinflip | Tiebreaker 6: random coinflip if all above are tied |
Ladder
The ladder ranks all teams by Elo rating. New teams start unrated and are seeded to 1500 when they upload their first ready submission.
Scheduling
Every 10 minutes, the scheduler:
- Pairs each team with one similarly-rated opponent (greedy nearest-rating matching with small random jitter to avoid repetitive matchups)
- Avoids rematches from the last hour
- Submits matches to the runner infrastructure
With N teams, each cycle creates floor(N/2) matches — one match per team.
Rating updates
Ratings are updated using Elo immediately after each match completes. Match outcomes use fractional scoring based on the game score (e.g., a 5-0 win counts more than a 3-2 win).
Each team has a single Elo rating that moves up or down after each match.
Unrated matches
You can challenge any team to an unrated match that doesn’t affect ratings:
cambc match unrated <opponent_team_id>
cambc match unrated <opponent_team_id> --map arena --map galaxy # specific maps
Test runs
Test runs let you upload two local bots and run them against each other on the same hardware as ladder matches:
cambc match test my_bot opponent
Rate limits: max 10 test/unrated matches per 10 minutes.
