HI,
I already have the source code of Rummy game with the following features. connect me on chat if you want to see the demo.
2/6 players
Photon multiplayer
Different game modes
101 pool
201 pool
13 card Rummy
Point rummy
Native share
Android toast message
Level 1 bots
Photon multiplayer chat
It also has scripts for APIController, Smart bots, End screen, FB Login, Unity ads, google ads, BO2, BO3, In-app purchases (But all these scripts have few bugs in it.) you can use these scripts to build your logic further.
Contact me if you want to see the demo
price is 400 usd (no further development will be provided)