Play contracts in order. Hit the target to add score, miss to halve your capital.
First 3 darts - establish your starting score
Classic: Hit the contract target to add your score to your capital. Miss it and your capital is halved!
Yahtzee Style: Choose where to register your score each turn. Scratch contracts you can't fill (score 0).
Killer: Pick a number, gain lives by hitting it (+3) or adjacent segments (+1). At 9 lives become a Killer and attack others. Doubles x2, Triples x3. Eliminated at -1 life. Last one standing wins!
Clock: Hit 1 through 10 in order, then finish with Bull. Doubles advance 2, Triples advance 3. If your last dart hits the target, you get an extra turn! First to finish wins. After 10 turns each, the player furthest ahead wins (ties possible).