String Theory

String Theory (2024)

DrewVGames · March 27, 2024 · Casual, Puzzle, 2D, Relaxing, Logic

String Theory is free to play — no purchase needed. We track it so you know if that ever changes.

PC
Positive82% · 11
This game is free to play. Get it on Steam →

Screenshots

String Theory price

String Theory is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About String Theory

Draw lines between pegs to create loops. The loops fill in with a different color depending on how many pegs they touch.
  • Any loop that touches either three pegs or six pegs turns green.
  • Any loop that touches either four pegs or eight pegs turns purple.
  • Any loop that touches either five pegs or seven pegs turns spotted purple.

Replicating the given pattern with as few loops as possible requires strategic placement and overlapping of loops.

With dozens of handcrafted patterns to match, and thousands additional free play patterns, String Theory is a mind-bending game filled to the brim with tricky puzzles to get the gears turning!

String Theory — game info

Platforms
Windows, macOS, Linux / SteamOS
Player modes
Single-player
PC Game Pass
Not included
More games like this:Mac gamesLinux games

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Mar 28, 2024
[b]5/10[/b] Draw shapes in layers to match the target pattern. [b]What is it:[/b] A logic game in which you draw shapes by connecting neighboring pegs. Depending on how many pegs you used in the shape, you get one of 3 possible colors: wavy red/green for 3 or 6 pegs, dark purple with oval blue for 4 or 8 pegs, and lilac with pink dots for 5 or 7 pegs. You can draw on top of another shape too, so if you see a small lilac triangle, it means that it was once a part of a bigger shape that's been covered up. Each level has a goal image that you must reproduce, ideally in the least number of steps possible. This simple mechanic leads to some interesting puzzles, and although it starts with a bunch of trivial levels, it can get quite complex. Other than the main levels, the game also has daily levels, custom level editor, and an infinite random puzzle generator. Great! A simple mechanic that is simple to understand, good for wasting some time. This makes a good proof of concept, but the game seems rushed out the door still at the prototyping stage. The UI looks too basic. There are no keyboard controls at all (not even Esc to pause or quit). The tutorial got me more confused than enli…
8 found this helpful
Recommended Jul 15, 2025
⠀
6 found this helpful
Recommended Sep 13, 2026
String Theory is a really clever little puzzle game, and I liked how simple the basic idea looks compared with how much thought some of the puzzles can require. I am given a target pattern and have to recreate it by drawing lines between pegs, with the resulting shapes changing color depending on how many pegs they touch. It is an easy concept to understand, but I quickly found myself thinking much more carefully about where each line should go. The main mechanic is all about creating loops and overlapping them in the right places. Different numbers of touched pegs produce different colors, so I have to work out how to construct the target image rather than simply drawing something that looks vaguely similar. I enjoyed this because every placement can affect the rest of the pattern. Sometimes the solution feels obvious, while other puzzles make me step back and rethink the whole arrangement. I also liked the fact that the game encourages me to solve patterns efficiently. Using fewer loops adds another layer to the puzzle because I am not only trying to recreate the design, but also looking for a cleaner solution. I found myself experimenting with different arrangements and then r…
Recommended Nov 22, 2025
cute short puzzle game, I guess, not the best not the worst
Recommended Feb 3, 2025
Very simple game that quickly gets difficult. It's great for critical thinking and problem solving.
Recommended Jan 3, 2025
nice little thing, i finished all the levels, got all par, except 8 of them where i was able to go under par!

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