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1-DC

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.

Achievements

View all 12
AHH, THE MEMORIES

AHH, THE MEMORIES

0.1%

Get reminded of a simpler time

PERPETUAL TORMENT

PERPETUAL TORMENT

0.1%

You will never escape.

A TRUE THADE

A TRUE THADE

2.6%

Optimize all tasks and extra tasks

WELL EDUCATED

WELL EDUCATED

5.2%

Learn all that you can

WHY IS THIS AN OPTION?

WHY IS THIS AN OPTION?

7.8%

Program with unusual settings for some time

1-DC

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

Developer

89o

Publisher

89o

Release Date

31 October, 2025

Platforms