A=B (v2022.04.01)

A tiny programming language becomes the entire puzzle box in this stark, brainy indie challenge. A=B strips coding down to one instruction—replace one value or pattern with another—then asks players to produce surprisingly sophisticated results from that limitation. Its tone is closer to a logic lab than a conventional adventure: clean, abstract, occasionally mischievous, and immensely satisfying when a stubborn solution finally clicks. What begins as simple text manipulation quickly turns into a lesson in how much computational power can hide inside a seemingly trivial rule.

Each stage presents an input, an expected output, and the freedom to assemble a sequence of replacement rules that transforms one into the other. Early tasks involve approachable operations such as changing letter case, but later problems demand careful handling of strings, binary data, arithmetic, ordering, and edge cases. Success is not only about making a program that works; many puzzles encourage you to reduce your solution to as few lines as possible, turning optimization into a second layer of challenge. The interface keeps attention on testing, revising, and understanding the consequences of every substitution, so progress comes from experimentation as much as formal programming knowledge. A built-in minigame also offers a lighter diversion while staying faithful to the same systems-driven spirit.

What makes A=B memorable is its commitment to a single command without making that command feel shallow. Rather than teaching programming through broad syntax or visual blocks, it reveals how constraints can create elegant, unexpected solutions and lets players discover techniques for themselves. The minimalist presentation suits the material, while the escalating puzzle design gives each breakthrough the feel of uncovering a loophole in the rules. Fans of Zachtronics-style optimization puzzles, especially games like TIS-100, SHENZHEN I/O, or Opus Magnum, should find plenty to chew on here. Newcomers can enjoy the early logical exercises, but the best fit is for persistent puzzle solvers who like testing ideas, trimming inefficiencies, and thinking like a programmer.