What Stake and MyStake actually are
Stake is an international online casino founded in 2017 that operates mainly on cryptocurrency — Bitcoin, Ethereum and other digital coins. MyStake is a separate brand that rides on the similarity in name and offers a comparable experience: slots, blackjack, roulette, crypto crash games and even sports betting. Both market themselves aggressively through influencers and social media, emphasizing blockchain "transparency" and provably fair mechanics.
It's important to understand that provably fair only proves a result wasn't tampered with after it was generated — it says nothing about whether the game is fair economically. Every game has a house edge, just like a traditional casino; the technological wrapper just makes it look different.