This Deck Simulator (Deck Sim) lets you create and manipulate virtual decks of cards. Currently in early beta, it doesn't yet support playing card games.
A standard 52-card deck (like for poker) is pre-loaded, and you can easily customize your own decks.
We're sorry that full gameplay isn't yet available. Show your support and suggest features by joining our Discord community: https://discord.gg/C8nuDMN
Alternatively, contact the developer directly at: [email protected]