Single-player games like Sandbox
Below are 14 single-player Steam games similar to Sandbox, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Sandbox page.
Ranked picks
- 1

It's Kooky
Single-player alternative to Sandbox — playable solo, no multiplayer required.
It's Kooky is a hand drawn hidden object game. Unlike any other, you will have to find those quirky characters with unusual behaviours hidden throughout the map of different locations. Have a kooky fun time!!!
- 2

SEARCH ALL - CATS
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie with Sandbox.
Is a hidden object game in which you need to find all the cats in a large location. Seals will be located in a variety of places, from the most prominent to barely noticeable places
- 3

Find Cats 4 女神与猫
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie and Adventure with Sandbox.
“A cute game for cat lovers of all ages! There are several maps and the opportunity to look for furry ones that are hiding intelligently!”
- 4

100 hidden cups
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie and Adventure with Sandbox.
The strange cups are hidden on the paper. A difficult adventure for the eyes.
- 5

SEARCH ALL - KEYS
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie with Sandbox.
Is a hidden object game in which you need to find all the keys in a large location. The keys will be located in a variety of places, from the most prominent to barely noticeable places
- 6

Cats Everywhere
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie and Adventure with Sandbox.
Find cats in a relaxing hidden-object game for cat lovers. Can you find them all?
- 7

100 hidden cats
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie and Adventure with Sandbox.
100 hidden cats is a hidden object game in the city setting. Black and white hand-drawn graphics in a cartoon style. Ultra hard! Really very difficult!
- 8

Finding Cats In Amusement Park
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie and Adventure with Sandbox.
This is a casual and relaxing hidden object game. Find cute cats in the amusement park.Can you find them? That's right,there are a few on the carousel. Meow Meow...Kittens are calling you!
- 9

August Walk
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie and Adventure with Sandbox.
The game has three story branches: normal, realistic, and mystical walk. In the normal branch you can just walk around the summer city, the forest and the spring.
- 10

Carnival in the hut
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie and Simulation with Sandbox.
There are ingredients on the level that you have to drag into the pot. Drag into the pot: eggs, oil, water in a bucket, flour in a bag, and dough (on water). (The name of the items is shown in the lower left corner.)
- 11

Keepers
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie and Simulation with Sandbox.
Keepers is a space-themed clicker game. You are an employee of a center tasked with saving a planet - a typical light-year.
- 12

Memory Patches
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie and Adventure with Sandbox.
A visual short novel about a girl who wakes up in an empty apartment and tries to figure out what happened. In front of her are four boxes filled with different items from her past. Touching them, she recalls pieces of memories, but one of the items is cursed.
- 13

Stellario
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie and Adventure with Sandbox.
In a large star field, the Spirit flies around and absorbs stars to build up mass and take on a different appearance. But you have to be careful on the journey - there are black holes scattered around the field, and also spaceships flying at unthinkable speeds.
- 14

Alcatraz
Single-player alternative to Sandbox — playable solo, no multiplayer required. Shares Indie and Adventure with Sandbox.
I was surprised to end up in Alcatraz. Having the best lawyer, I had hoped to be acquitted. But all his efforts to get me acquitted were in vain. My sentence screamed: "Welcome to hell, son." And so I found myself among thieves, murderers and rapists.