Top similar games like String Theory:

Snakehaus is a relaxing painter-puzzle game where you add, mix, or erase colours to clear a level. Mess around with the existing artworks, or create and share a whole new one.

Starlight X-2 is a space-themed puzzle game. Position stars and asteroids in clever ways to illuminate planets.

Polychromia is a fresh take on logic puzzles where one tries to blend colors together on a grid and make flowers bloom. 100+ simple yet challenging puzzles, along with calm music and serene visuals, make for the perfect relaxing experience!

Dissembler is a subtle puzzle game about unraveling playful, abstract designs one color at a time.

Liquidum is a water-themed logic puzzle game, where you strategically fill interconnected aquariums across six challenging sections with unique mechanics.

A mixture of a minesweeper and "remember the pictures". Remember as much information as possible, or act at random. Reach the finish line as quickly as possible in a variety of puzzles. And you can also make your own levels in the editor.

Minschima is a relaxing puzzle game where you need to match all targets to restore the broken shapes in the board. Pieces move together. Match all targets. Solve puzzles.

Drag Tetromino blocks onto a board of gems to make a match. Use bombs for impressive explosive effects. Kavel is an action-puzzle game that brings together block puzzles and match-3 in an exciting new twist. A truly unique new entry in the genre.

Mondrian Squares is a colourful, abstract puzzle game with random, procedurally generated levels so you never play the same game twice. Progressive difficulty with no upper limit ensures that you will always have a new challenge to face.

Kubits Gallery is a logic game for casual players where you will have to solve nonogram grids to repaint the vanished paintings inside museums around the world. Solve puzzles at your own pace more than 120 levels in various fictional galleries.

Pight is a minimalist puzzle game inspired by the Minecraft redstone system, in which we try to turn on the light block by using piston blocks and different block types.

ShapeGrid is a casual puzzle game. Find your way through different shapes and colors. Solve 70 hand-crafted puzzles or compete against other players in endless mode!

Stars SLIDE is a minimalistic puzzle which goal is to get the stars to finish using 4 directions in space. Numerical, stationary, moving and rotating blocks challenge you to find the right path. Solve puzzles while watching mountains in a peaceful and relaxing soundscape.

Think strategically to place tents in the peaceful universe of Tents and Trees, a chill puzzle game set in the great outdoors!

A relaxing sliding puzzle game about arranging animals to make them happy.

AuroraBound Deluxe is a relaxing and addictive puzzle game, where you link matching pieces together to discover beautiful hidden patterns.

Linklight is a relaxing minimalist puzzle game that consists of rotation based puzzles; unplug yourself from your surroundings as you navigate your way through endless puzzles.

Delve into a world where dice hide secrets within. A unique indie puzzler that blends Matryoshka charm with intricate mazes and escalating logic challenges. Unravel puzzles that require more than just a roll of the dice, it's a cerebral journey of strategy and surprise!

Active Neurons is a puzzle game in which you have to charge brain neurons.

Arrows is a puzzle game with a minimalist and modern visual that consists of aligning the colored blocks

InfiniPicross 3: The Conclusion of the InfiniPicross series! Faster and more complex procedural puzzles (as well as better looking), even more puzzles (IP 2.0 puzzles packed in), a smooth interface built on previous improvements, easy to tweak themes and a very easy built-in puzzle editor.

Active Neurons 2 is a puzzle game in which you have to discover 12 greatest inventions of humanity and reflect on the power of human thought

Square Logic is a minimalist puzzle game about coloring the grid with squares and rectangles, respecting the number of each cell.

Jetstream is an elegant and relaxing puzzle game where you soar amongst the clouds. Play through dozens of sculpted levels as you guide your plane to its destination. Jetstream has been designed to be a frictionless experience - it’s just you and the puzzles!

A relaxing puzzle game with a beautiful and immersive atmosphere to sharpen your mind.

A minimalistic puzzle game with beautiful piano music. Solve puzzles by placing light bridges between nodes on a triangular grid.

Use your skills to choose the correct path by modifying the direction of the arrows and/or their position, in a minimalistic puzzle game where your logical thinking will be challenged.

Sokobond is an elegantly designed puzzle game about chemistry. It's logical, minimalist, and beautiful - crafted with love and science.

Logic Colors is Indie Logic Game in which You move color tiles to solve riddles. Discover rules and relax in 225 unique levels and unlock all items in game! Will You finish them perfectly?

Paint by Cubes is a relaxing, colorful puzzle game. Take control of a coloring cube and solve coloring puzzles according to presented patterns.

Put two and two together in this minimalist, hex-based puzzle game that will rekindle your love for numbers. Solve thoughtfully crafted levels that invite you to engage your mind and explore the unique gameplay at your own pace.

Twizzle Puzzle: Birds - is the perfect puzzle game for a fun and rewarding pastime.

Color Patterns is a minimalist puzzle game inspired by the classic board game domino. Find the correct color patterns on the board.

A chilled out & stimulating nonogram puzzle game with endless logic puzzles to solve. Uncover a huge variety of 3D objects, and discover new puzzles - never run out of fun!

In unlock the block your objective is to activate a button, but for that you will have to push your way through and destroy blocks. This may seem easy but know one thing your movement is limited.

A worryingly recursive puzzle game about pushing boxes into other boxes. Rearrange the structure of the world itself to forge a path to the exit!