Skip to content
Geeky Alien
Ecocoru : Euclidean Constructions -- Compass & Ruler

Screenshots

Ecocoru : Euclidean Constructions -- Compass & Ruler screenshot 1
steam-final trailerWatch trailer on Steam ↗

Ecocoru : Euclidean Constructions -- Compass & Ruler

Sergey Krasnikov · Published by Sergey Krasnikov

4 user reviews — 100% positive (4 reviews)

Last updated 27 Sept 2026

Ecocoru is a puzzle game where you have to solve compass and ruler construction problems.

DJCTQ l

£4.29

Lowest price we've ever recorded

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Price history

3 Sept 2026Lowest: £4.29 · Highest: £4.298 Oct 2026

Indie, Simulation · 2022 · More under £5 games

Embark on geometric challenges as you construct precise shapes and figures using only a compass and straightedge. Ecocoru offers a unique puzzle experience from developer Sergey Krasnikov, perfect for fans of precise problem-solving in a simulation setting.

About this game

Ecocoru is a puzzle game where you have to solve compass and ruler construction problems. The game mimics compass and ruler and let you draw straight lines/segments and circles/arcs. You can also view and explore a solution for each problem. A basic knowledge of well-known results of Euclidean geometry is needed to play the game. The game has over 100 problems. Some problems date back to classical antiquity.

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS *: Windows 7
  • Graphics: Support for OpenGL 2.1

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • Graphics: Support for OpenGL 3.3

Supported Languages

English

Latest news

  • Patch NotesOfficial

    Patch notes v1.12

    Refactored and optimized algorithm for finding intersections. Fixed wrong intersections with degenerate arcs. Fixed snapping cursor jitter. Problem 22: fixed verifier (In some cases the verifier could not find a correct solution). Problem 74: fixed verifier (The verifier accepted an incorrect solution).
    Read full article on Community Announcements (meikyuu)
  • Patch NotesOfficial

    fixed some issues

    corrected verifiers and solutions for Problems 58 and 59.
    Read full article on Community Announcements (meikyuu)
  • Patch NotesOfficial

    Regular update v 1.1

    This update contains the following changes. Added progress tracking. All solved problems are marked with a checkmark in the list of all problems. (The show solution button must not be used.) Added support for fullscreen mode. You can press ALT+ENTER to switch the game into full screen view or click the "Fullscreen" button in Settings. Reworked descriptions of some problems. Simplified solutions to some problems. Fixed various smaller issues and typos
    Read full article on Community Announcements (meikyuu)
  • Patch NotesOfficial

    Regular update

    This update contains the following changes. Added progress tracking. All solved problems are marked with a checkmark in the list of all problems. (The show solution button must not be used.) Added support for fullscreen mode. You can press ALT+ENTER to switch the game into full screen view or click the "Fullscreen" button in Settings. Reworked descriptions of some problems. Simplified solutions to some problems. Fixed various smaller issues and typos
    Read full article on Community Announcements (sergei.krasnikov)

We use strictly necessary cookies to run this site. We don't currently set any analytics or advertising cookies. See our Cookie Policy for details.