Seotda (also known as Sutda) is a Korean betting card game similar to Oicho-Kabu. Initially played with Tujeon, nowadays the game uses Hwatu or Hanafuda instead. Players bet on the value of their dealt cards across multiple rounds like Poker or other showdown games. Seotda hands consist of 2 cards.

This implementation also supports Dorijitgo-ttaeng, which requires players to form a 3-card combination whose value total is divisible by 10 and then use the remaining two cards in their 5-card hand.

Hwatu images by Marcus Richert and Hanafuda images by Louie Mantia Jr. are used under Free Art License 1.3, which is compatible with CC BY-SA 4.0 license.

Hwatu sound effects by JICA (Jeonju) are used under Korea Open Government License Type 1.