Games like Happy Words
Games like Happy Words include UNO, Richman10, Bloons TD 6, Richman 11, and Liars Bar. We matched them by the tags players give Happy Words on Steam (Word Game, Board Game, Multiplayer, Text-Based, and Casual): closest matches first, and among equally close ones the better-known games.

UNO
Shared: Multiplayer · Board Game · Tabletop

Richman10
Shared: Multiplayer · Casual · Board Game

Bloons TD 6
Shared: Multiplayer · Strategy · Casual

Richman 11
Shared: Multiplayer · Board Game · Casual

Liars Bar
Shared: Multiplayer · Casual · Tabletop

No Time to Relax
Shared: Board Game · Multiplayer · Casual

Pummel Party
Shared: Multiplayer · Board Game · 4 Player Local

Carcassonne - Tiles and Tactics
Shared: Board Game · Multiplayer · Casual

Talisman: Digital Classic Edition
Shared: Board Game · Multiplayer · Tabletop

Tabletop Simulator
Shared: Board Game · Multiplayer · Tabletop

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

Golf With Your Friends
Shared: Multiplayer · Casual · Family Friendly

Small World
Shared: Board Game · Casual · Tabletop

Overcooked! 2
Shared: Multiplayer · Casual · Family Friendly

THE GAME OF LIFE 2
Shared: Board Game · Multiplayer · Tabletop

Hasbro's BATTLESHIP
Shared: Board Game · Multiplayer · Tabletop

THE GAME OF LIFE
Shared: Board Game · Multiplayer · Casual

Scribble It!
Shared: Multiplayer · Word Game · Family Friendly

100% Orange Juice
Shared: Board Game · Multiplayer · Casual

Clue/Cluedo: Classic Edition
Shared: Board Game · Casual · Strategy

Gang Beasts
Shared: Multiplayer · Casual · Local Multiplayer

Gremlins, Inc.
Shared: Board Game · Multiplayer · Tabletop

Chess Ultra
Shared: Board Game · Multiplayer · Tabletop

Walk of Life
Shared: Multiplayer · Board Game · Casual