When I click "Coin Game," what do the different "Levels" (Level 1, Level 2, etc.) mean?

 In the Coin Game section, the different "Levels" (e.g., Level 1 "Neptune" - Stake: 100; Level 6 "Solaris" - Stake: 5K; Level 13 "Singularity" - Stake: 1M) represent different coin stake amounts for the match. Higher levels mean higher stakes. Each level has a unique board design associated with it. The "How Does It Work?" panel usually explains that to unlock new, higher levels, you need to have a minimum coin balance that is a multiple (e.g., 4x) of the stake for that level, promoting conservative bankroll management.