YOPEY YOPEY - Lessan

Lessan is a fun, math puzzle game. Try to remove all the numbered blocks using arithmetic.

Look out for special blocks in the later levels.

How many levels will you complete? Will you get to the end?

Technical Game Information

Latest Build: v2.1

Change Log:

v2.1 (August 23, 2020)
- can now move more than one empty space on the board
- improved rendering
- fixed bug with saving
- updated APIs
v1.1 (July 26, 2017) Released on Android
v1.0 (July 18, 2017) Released on iOS

Programming Language: HTML5 and Javascript compiled on Cordova

Game Engine: bespoke - see my Github repositories for open-sourced components

Graphics Engine: PIXI.js

Sound Engine: howler.js

Storage Engine: localforage

Source Code Editor: Visual Studio Code

Audio Editor: Ableton, Audacity

Source Code Repository: Github