Games like Demonic Mahjong: Heatwave Carnival
Games like Demonic Mahjong: Heatwave Carnival include Cities: Skylines, Mini Motorways, Hearts of Iron IV, Game Dev Tycoon, and Mount & Blade II: Bannerlord. We matched them by the tags players give Demonic Mahjong: Heatwave Carnival on Steam (Downloadable Content): closest matches first, and among equally close ones the better-known games.

Cities: Skylines
Shared: Single-player · Steam Cloud · Family Sharing

Mini Motorways
Shared: Single-player · Strategy · Steam Cloud

Hearts of Iron IV
Shared: Single-player · Strategy · Steam Cloud

Game Dev Tycoon
Shared: Single-player · Steam Cloud · Family Sharing

Mount & Blade II: Bannerlord
Shared: Single-player · Strategy · Steam Cloud

Cookie Clicker
Shared: Single-player · Steam Cloud · Family Sharing

Bloons TD 6
Shared: Single-player · Strategy · Family Sharing

Dorfromantik
Shared: Single-player · Steam Cloud · Family Sharing

Nodebuster
Shared: Single-player · Casual · Steam Cloud

Stellaris
Shared: Single-player · Strategy · Steam Cloud

Sid Meier's Civilization® V
Shared: Single-player · Strategy · Steam Cloud

DAVE THE DIVER
Shared: Single-player · Steam Cloud · Casual

Richman10
Shared: Single-player · Casual · Steam Cloud

House Flipper
Shared: Single-player · Steam Cloud · Family Sharing

Kingdom Rush - Tower Defense
Shared: Single-player · Strategy · Steam Cloud

Age of Empires II (Retired)
Shared: Single-player · Strategy · Steam Cloud

XCOM 2
Shared: Single-player · Strategy · Steam Cloud

Europa Universalis IV
Shared: Single-player · Strategy · Steam Cloud

Manor Lords
Shared: Single-player · Strategy · Steam Cloud

Plants vs. Zombies GOTY Edition
Shared: Single-player · Strategy · Family Sharing

911 Operator
Shared: Single-player · Strategy · Steam Cloud

Slots & Daggers
Shared: Single-player · Strategy · Casual

Frostpunk
Shared: Single-player · Steam Cloud · Family Sharing

Company of Heroes 2
Shared: Single-player · Strategy · Steam Cloud