Single-player games like The Hardest Thing
Below are 9 single-player Steam games similar to The Hardest Thing, 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 The Hardest Thing page.
Ranked picks
- 1

The Hardest Thing Ever
Single-player alternative to The Hardest Thing — playable solo, no multiplayer required. Shares Strategy and Indie with The Hardest Thing.
The Hardest Thing Ever is a first-person game where you will solve puzzles with physics
- 2

My Suika – Kyo’s Fruit Merge
Single-player alternative to The Hardest Thing — playable solo, no multiplayer required. Shares Strategy and Indie with The Hardest Thing.
A fun watermelon merge puzzle game! Combine various matching fruits to help Kyo gather watermelons in four different game modes!
- 3

Quantum Conundrum
Single-player alternative to The Hardest Thing — playable solo, no multiplayer required. Shares Strategy and Casual with The Hardest Thing.
Find and rescue your uncle by using his newest invention to work your way through a crazy complex mansion as you switch between dimensions and solve puzzles!
- 4

The Ball
Single-player alternative to The Hardest Thing — playable solo, no multiplayer required. Shares Strategy and Indie with The Hardest Thing.
As a swashbuckling archaeologist, unlock the mystery of the ancient ruins that have been hidden for centuries and discover a mysterious artifact, a gold and metal shelled Ball.
- 5

BOULDER DASH 40th Anniversary
Single-player alternative to The Hardest Thing — playable solo, no multiplayer required. Shares Strategy and Indie with The Hardest Thing.
BOULDER DASH® 40th Anniversary – A legend returns! Immerse yourself in 40 years of video game history and experience the classic BOULDER DASH® in an epic anniversary edition!
- 6

Caveman World: Mountains of Unga Boonga
Single-player alternative to The Hardest Thing — playable solo, no multiplayer required. Shares Indie and Adventure with The Hardest Thing.
Caveman World: Mountains of Unga Boonga is a retro inspired platformer adventure game set in fantasy prehistoric time. You play as a Caveman, exploring various levels and overcoming physical obstacles. Levels become increasingly more difficult as you encounter enemies, obstacles, traps and more!
- 7

Snake Pass
Single-player alternative to The Hardest Thing — playable solo, no multiplayer required. Shares Indie and Adventure with The Hardest Thing.
Slither, coil and climb your way to the top of Haven Tor in this one of a kind physics based, puzzle platform adventure from award winning independent studio Sumo Digital!
- 8

Tiny Bridge: Ratventure
Single-player alternative to The Hardest Thing — playable solo, no multiplayer required. Shares Strategy and Indie with The Hardest Thing.
This mind-bending game will challenge you to create complex structures to get your woodland creatures over vast chasms. In a bridge-builder first, you'll guide your creatures and construct your bridges in real time. Use the weight of various creatures to balance your structures as you build them.
- 9

Card Adventures
Single-player alternative to The Hardest Thing — playable solo, no multiplayer required. Shares Strategy and Indie with The Hardest Thing.
What will happen if you combine card game with RPG? Heroes, allied characters, enemies with loot, different quest, interesting places and even bosses? Meet the Card adventures!