Blackjack Basic Strategy for Rust Snowball Rules (1:1, H17, 10-11 Double)
Blackjack on Rust Snowball runs at about 3% house edge with the default rules. Basic strategy gets you to that number. Anything else costs you EV.
The rules, fully disclosed
The defaults: 1:1 natural payout, dealer hits soft 17, no double after split, double restricted to hard 10 and 11. Single 52-card deck, Fisher-Yates shuffled per hand. House edge under these rules works out to about 3%.
That edge is asserted in CI against a Monte-Carlo simulation of the actual engine code. If the disclosed number ever drifts from the real number, the build fails. The number you see at /games/blackjack/rules is the number you get.
Memorize the chart or stop playing. Every deviation from basic strategy is money you're donating to the house.
Basic strategy, plain
For every combination of player hand and dealer upcard, there's one decision that maximizes EV: hit, stand, double, or split. The chart for that is widely published; we'll link a printable version on the help page.
For our specific rules, two adjustments matter. Doubles are limited to hard 10 and 11 — ignore "double" cells in the standard chart for any other total, because the rule disables it. And no double-after-split, so the split decision tree skips the "split into a double" play entirely.
Insurance is a separate side bet
When the dealer shows an Ace, insurance is offered as a side bet that pays 2:1 profit if the dealer's hole card is ten-value. The main blackjack edge stays disclosed separately from this side bet.
The live rules endpoint discloses insurance at about 5.88% house edge. Taking it adds that side-bet edge on top of the main hand instead of changing the main blackjack payout rules.
Card counting doesn't apply
Card counting works in offline blackjack because the dealer plays through a shoe of multiple decks. The counter tracks how many high cards have been dealt and adjusts bets when the remaining shoe favors the player.
Online single-deck-per-hand games re-shuffle before every hand. There's no shoe to count down. Whatever the count was after the last hand is irrelevant — the next hand starts with a fresh distribution. You're not card-counting; you're guessing.
Frequently asked questions
- Where do I get the strategy chart?
- Standard 1-deck H17 chart. Search for "single deck blackjack basic strategy H17" and use the first result. The only Rust Snowball-specific tweak is to ignore doubles outside hard 10 and 11.
- Why is the natural payout 1:1 instead of 3:2?
- Product decision. We disclosed it openly rather than ship a 3:2 default we'd ever want to quietly downgrade. Operators can switch it via env; the rules endpoint always reflects the live config.
- Should I ever take insurance?
- Insurance is optional and separately disclosed at about 5.88% house edge. Taking it adds side-bet exposure on top of the main hand.
- Can I count cards here?
- No. Deck reshuffles every hand. Card count carries no information across hands.