Games like String Theory

"Circuits" is a single-player musical puzzle game with good mechanics and spectacular graphics, known for its exceptional soundtrack and grinding nature. An upcoming update, "Circuits Composer," will allow players to create and share their own songs through the Steam Workshop. The game is set to become more expensive after the update, which will introduce a level editor for user-generated content.

Intralism is a fast-paced musical rhythm game with challenging gameplay that requires good reaction time and an ear for music. It features global ranks, official and user-created maps, and a built-in editor for creating your own maps. With support for both single-player and multiplayer, you can customize your game experience with rare items and compete with others online for the top spot on the global ranking. However, the game is poorly optimized and buggy, but it still provides a hilarious and enjoyable experience.

Neon Drive is a rhythm-based racing game with a retro synthwave aesthetic. Players must navigate through six levels of challenging obstacle courses, keeping the beat to stay in sync and avoid crashing. Featuring a Tron-inspired art style and a pulse-pounding soundtrack, Neon Drive offers a fresh take on the racing genre with its unique blend of rhythm and reflexes.

"Slash It Ultimate" is a rhythm arcade game with a mix of 2D and 3D play styles, featuring 15 songs and 7 game modes with 2 difficulty levels each. Players must slash, catch, collect, and type beats to the rhythm, while avoiding obstacles and competing on leaderboards and achievements. Game modes include Arrows, Mouse, Numbers, Cube, Space, Words, and Alphabet modes.

"Melatonin" is a single-player comedy arcade rhythm game with an amazing story, perfect gameplay, and stunning visuals. The game explores the merging of dreams and reality through unique rhythm game levels with hand-drawn art and vibrant music. Unlock hard mode, mashups, and even create your own rhythm game level in this highly emotional, sensational soundtrack experience with fantastic replayability.

Mind Spheres is a physics-based puzzle game where players manipulate colorful orbs to solve challenging levels. By using various tools and abilities, players must match sphere colors and navigate through obstacles to reach the goal. With its unique gameplay and calming atmosphere, Mind Spheres offers a satisfying and engaging puzzle experience.

"Slash It 2" is a fast-paced 2D arcade game where players press letters and numbers at the right time to type words and advance. It features 6 game modes, global leaderboards, and over 300 achievements to unlock, along with Steam Trading Cards. The goal is to improve your typing speed and accuracy in a vibrant and colorful environment.

"Slash It" is a fast-paced 2D arcade game with six unique game modes. Players must match shapes, press letters, and hit numbers in sync to progress. Challenging easy achievements, trading cards, hiscores, and Steam Leaderboards will keep you engaged for hours. The game features vibrant colors and a simple yet addictive gameplay mechanic.

"Noun Town Language Learning" is an innovative game that teaches foreign languages through interactive gameplay, with a focus on 13 different languages. The game uses speech recognition to help players perfect their pronunciation and features engaging mini-games and lessons. Players can start with no prior knowledge and build up a vocabulary of over 1,000 words and phrases. The game is playable on Steam Deck.

Train Valley is a strategic railway simulator where you build and manage train stations across different historical eras. Your goal is to transport passengers, cargo, and mail efficiently while balancing resources and expanding your network. With challenging missions, various landscapes, and real-world locomotives, Train Valley offers a satisfying and educational experience for railroad enthusiasts.