Both Stake and BCH.games have popular games such as Mines, Tower, Crash, and Target (notably referred to as Limbo on Stake). Stake's platform indicates a house edge of 1% for these games, whereas BCH.games lists a house edge of 2%.

Given that both platforms games are provably fair, I'm curious about the source of the discrepancy in house edge rates. Specifically, does the increased house edge at BCH.games stem solely from the monetary requirements to win (e.g., needing to roll above a 50.99 on BCH.games for a 2x win in Target)?

How does this variation in house edge impact other games like Mines, Tower, and Crash? Are the dynamics similar, or is there another mechanism at play influencing the difference in house edge between the two platforms?