The BoardGameGeek Star Realms League (BGGSRL) is a tiered tournament league, with multiple multiple divisions of 11–16 players competing in each tier.

Each season, players choose a “home format” to use in half of their games and compete in 10 rounds of round-robin play in their divisions.

At the end of each season, a few players from each division will move up or down between tiers based on their division results.