Steam game

1-DC

An open-ended programming puzzle game with a minimalist, abstract, Assembly-like programming language.

$4.99 October 31, 2025

By 89o

Windows Linux
View on Steam
1-DC - 89o. Popular. Released October 31, 2025
Screenshot of 1-DC gameplay showing in-action mechanics Screenshot 2 of 1-DC - additional gameplay view Screenshot 3 of 1-DC - more gameplay footage Screenshot 4 of 1-DC - final gameplay screenshot

Overview

About this game

TO BE CLEAR: YOU NEED TO BE SOMEWHAT FAMILIAR WITH HOW PROGRAMMING WORKS IN ORDER TO ENJOY THIS GAME.

1-DC is an open-ended programming puzzle game (a "zach-like"), featuring a fictional low-level programming language. There are only three base commands; the rest depends on the commands' parameters (somewhat like SIC-1). This challenges the player to think in abstract and minimal terms.

How can you calculate a sine wave with only two variables? That's up to you to figure out.

Features:

  • 32 base levels;

  • 16 bonus levels, featuring negative numbers and a third variable slot;

  • A commands par in each level that you can optimize for;

  • 12 achievements, ranging from tedious to confusing;

  • A simple level editor, with more variable slots and a greater range of values

  • Voicelogs left by your boss, to inform you about his search for your missing wife.

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