Games like Sad Virus Town
Games like Sad Virus Town include A Hat in Time, Totally Accurate Battle Simulator, Slime Rancher, Human Fall Flat, and Wobbly Life. We matched them by the tags players give Sad Virus Town on Steam (3D Platformer, Puzzle Platformer, Hidden Object, Collectathon, and Sandbox): closest matches first, and among equally close ones the better-known games.

A Hat in Time
Shared: 3D Platformer · Collectathon · Cute

Totally Accurate Battle Simulator
Shared: Sandbox · Simulation · Adventure

Slime Rancher
Shared: Adventure · Cute · Sandbox

Human Fall Flat
Shared: Puzzle Platformer · Sandbox · Adventure

Wobbly Life
Shared: Adventure · Sandbox · Simulation

Chained Together
Shared: Puzzle Platformer · Adventure · 3D Platformer

Supraland
Shared: Puzzle Platformer · Adventure · 3D Platformer

Goat Simulator
Shared: Simulation · Sandbox · Funny

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

Stardew Valley
Shared: Life Sim · Simulation · Sandbox

Squirrel with a Gun
Shared: Simulation · Sandbox · 3D Platformer

The Sims™ 3
Shared: Simulation · Life Sim · Sandbox

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

Paralives
Shared: Simulation · Life Sim · Sandbox

The Plucky Squire
Shared: 3D Platformer · Puzzle Platformer · Adventure

Wobbledogs
Shared: Sandbox · Simulation · Cute

Yooka-Laylee
Shared: 3D Platformer · Collectathon · Adventure

Portal
Shared: Puzzle Platformer · 3D Platformer · Singleplayer

Biped
Shared: Puzzle Platformer · 3D Platformer · Sandbox

Internet Cafe Simulator 2
Shared: Simulation · Sandbox · 3D

Placid Plastic Duck Simulator
Shared: Collectathon · Cute · Simulation

Kerbal Space Program
Shared: Sandbox · Simulation · Indie

Portal 2
Shared: Puzzle Platformer · 3D Platformer · Singleplayer

SPORE™
Shared: Sandbox · Simulation · Open World