Here is the full list of all 16 Cheaters Blackjack 21 achievements.
Win a 100 Round Match
Win a 25 Round Match
25 Match - Beat 3 or More CPU Players
Win a 50 Round Match
50 Match - Beat 3 or More CPU Players
100 Match - Beat 3 or More CPU Players
Win a $10,000 Round Match
$10k Match - Beat 3 or More CPU Players
Win a $25,000 Round Match
$25k Match - Beat 3 or More CPU Players
Win a $50,000 Round Match
$50k Match - Beat 3 or More CPU Players
Win 500 Matches vs 1 CPU Player
Win 500 Matches vs 2 CPU Players
Win 500 Matches vs 3 CPU Players
Win 500 Matches vs 4 CPU Players