Games like SPLACHESS
Games like SPLACHESS include Peggle Deluxe, Liars Bar, Richman 11, Plague Inc: Evolved, and Rento Fortune: Online Dice Board Game (大富翁). We matched them by the tags players give SPLACHESS on Steam (Board Game, Casual, Puzzle, Turn-Based Tactics, and 2D): closest matches first, and among equally close ones the better-known games.

Peggle Deluxe
Shared: Casual · Puzzle · 2D

Liars Bar
Shared: Casual · PvP · Multiplayer

Richman 11
Shared: Casual · Board Game · Turn-Based Tactics

Plague Inc: Evolved
Shared: Casual · Singleplayer · Tactical

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

Zup! S
Shared: Casual · Puzzle · 2D

Plants vs. Zombies GOTY Edition
Shared: Casual · Singleplayer · 2D

UNO
Shared: Board Game · Casual · Multiplayer

Blood Bowl 2: Legendary Edition (Classic)
Shared: Board Game · Multiplayer · Singleplayer

Blood Bowl 3
Shared: Board Game · PvP · Singleplayer

Peggle™ Nights
Shared: Casual · Puzzle · 2D

Dorfromantik
Shared: Puzzle · Casual · Board Game

Pikuniku
Shared: Casual · Puzzle · Multiplayer

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

5D Chess With Multiverse Time Travel
Shared: Board Game · Puzzle · Turn-Based Tactics

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

Texas Hold'em Poker: Pokerist
Shared: Casual · Board Game · PvP

Scribblenauts Unlimited
Shared: Casual · Puzzle · 2D

Puyo Puyo™Tetris®
Shared: Casual · Puzzle · Multiplayer

Bloons TD 6
Shared: Casual · Singleplayer · Multiplayer

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

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

DETOUR
Shared: Puzzle · Casual · Singleplayer

Tactical Breach Wizards
Shared: Puzzle · Turn-Based Tactics · Tactical