Games like GrassGames Hearts 3
Games like GrassGames Hearts 3 include UNO, Rento Fortune: Online Dice Board Game (大富翁), Balatro, Poker Night at the Inventory, and Wingspan. We matched them by the tags players give GrassGames Hearts 3 on Steam (Card Game, Tabletop, Casual, Turn-Based Tactics, and Character Customization): closest matches first, and among equally close ones the better-known games.

UNO
Shared: Card Game · Tabletop · Casual

Rento Fortune: Online Dice Board Game (大富翁)
Shared: Casual · Tabletop · Card Game

Balatro
Shared: Card Game · Singleplayer · Casual

Poker Night at the Inventory
Shared: Card Game · Casual · Singleplayer

Wingspan
Shared: Card Game · Casual · Tabletop

Talisman: Digital Classic Edition
Shared: Tabletop · Card Game · Indie

Demonic Mahjong
Shared: Card Game · Tabletop · Casual

WEBFISHING
Shared: Casual · Character Customization · Indie

Tabletop Simulator
Shared: Tabletop · Card Game · Casual

Esports Godfather
Shared: Card Game · Turn-Based Tactics · Character Customization

Texas Hold'em Poker: Pokerist
Shared: Card Game · Casual · Turn-Based Tactics

Marvels Midnight Suns Digital Edition
Shared: Turn-Based Tactics · Card Game · Character Customization

Liars Bar
Shared: Casual · Tabletop · Indie

Friends vs Friends
Shared: Card Game · Old School · Team-Based

THE GAME OF LIFE 2
Shared: Tabletop · Card Game · Casual

Richman 11
Shared: Casual · Turn-Based Tactics · Tabletop

Low Magic Age
Shared: Turn-Based Tactics · Team-Based · Old School

The Four Kings Casino and Slots
Shared: Card Game · Casual · Character Customization

Richman10
Shared: Casual · Tabletop · Local Multiplayer

Ticket to Ride®
Shared: Card Game · Casual · Local Multiplayer

Just Go
Shared: Casual · Card Game · 3D

Pic-Me!
Shared: Tabletop · Casual · Card Game

Sultan's Game
Shared: Card Game · Singleplayer · Tabletop

Warhammer Underworlds - Shadespire Edition (Classic)
Shared: Turn-Based Tactics · Casual · Card Game