About this title
About this title
Relaymere is an educational puzzle game about digital logic. Switches sit on the left, lamps on the right, and a table says what every lamp must do. Place gates, run wires from outputs to inputs and press Test: every row of the table lights up green or red.
- 27 circuits in five chapters: lamps and switches, everything from NAND, counting with lamps (half and full adders, a 2-bit adder), choosing and comparing (selector, decoder, comparators) and memory (feedback, SR latch, data latch)
- Learn by building: a short lesson for every circuit and a hint button; the table checks your circuit live while you build
- Parts you build become parts you use: solve the half adder and it joins your parts box, then the full adder, the selector and the latch
- Stars for elegance: use the fewest parts (par is a proven reference solution)
- Free workbench with four switches, four lamps and a live truth table
- Mouse, touch, keyboard or controller; English and Bulgarian
- Native builds for Windows (64-bit), Linux (64-bit) and Android (64-bit ARM); progress and settings are saved; no ads, no tracking, no internet needed.
Code and text written with AI assistance; checked by PN Scripts with automated tests. Every shape is drawn and every sound synthesised by code; there are no AI-generated image or audio files. Made by PN Scripts.
Controls
- Mouse: click a part in the box and then the board, drag between pins to wire, drag parts to move, right click removes
- Touch: tap a part, tap the board, tap one pin and then another to wire
- Keyboard: arrows move the cursor, Space or Enter picks and connects, Delete or V removes, X cancels, G flips a switch, T tests, Z undoes
- Controller: stick or D-pad moves, A picks and connects, X removes, B cancels, Y tests, LB undoes, RB flips a switch
- Esc, P or Start: pause
