Games like A Special Day
Games like A Special Day include Stardew Valley, Unpacking, Gang Beasts, Paralives, and Potion Craft: Alchemist Simulator. We matched them by the tags players give A Special Day on Steam (Life Sim, Indie, Top-Down, Atmospheric, and Relaxing): closest matches first, and among equally close ones the better-known games.

Stardew Valley
Shared: Life Sim · Relaxing · Indie

Unpacking
Shared: Relaxing · Casual · Indie

Gang Beasts
Shared: Co-op · Casual · Indie

Paralives
Shared: Life Sim · Indie · Simulation

Potion Craft: Alchemist Simulator
Shared: Relaxing · Indie · Singleplayer

PowerWash Simulator 2
Shared: Casual · Relaxing · Simulation

Journey
Shared: Indie · Atmospheric · Relaxing

Overcooked! 2
Shared: Casual · Indie · Local Co-Op

The Sims™ 4
Shared: Life Sim · Simulation · Singleplayer

Overcooked
Shared: Indie · Local Co-Op · Casual

Plague Inc: Evolved
Shared: Indie · Simulation · Singleplayer

House Flipper
Shared: Simulation · Singleplayer · Relaxing

Golf With Your Friends
Shared: Indie · Casual · Multiplayer

Coral Island
Shared: Life Sim · Relaxing · Simulation

Streamer Life Simulator
Shared: Life Sim · Casual · Indie

PowerWash Simulator
Shared: Casual · Relaxing · Simulation

Chinese Parents
Shared: Life Sim · Indie · Casual

Mountain
Shared: Indie · Relaxing · Casual

Cat Mail Co.
Shared: Relaxing · Life Sim · Simulation

Superflight
Shared: Indie · Relaxing · Atmospheric

Crime Scene Cleaner
Shared: Relaxing · Simulation · Singleplayer

My Time at Portia
Shared: Life Sim · Casual · Simulation

Farm Together
Shared: Relaxing · Simulation · Casual

Mini Motorways
Shared: Casual · Indie · Simulation