Retro Computing · Reborn
Nibble.Workshop
Microcode-level emulators of legendary programmable calculators and retro-inspired games — crafted natively for iPhone, iPad, and Mac.
One workshop. Many machines. All faithfully reproduced.
Emulators
Not simulations — cycle-accurate microcode emulation of the actual hardware that defined an era.
HP-16C Computer Scientist
Microcode-level emulation of the Voyager-series HP-16C — the calculator built specifically for programmers. HEX, OCT, BIN, bit ops, all of it.
Open →HP-10C Programmable Scientific
Microcode-level emulation of the Voyager-series HP-10C — the rarest Voyager, with trig, logarithms, statistics and 79 lines of keystroke programming behind a single prefix key.
Open →HP-11C Programmable Scientific
Microcode-level emulation of the Voyager-series HP-11C — the everyday RPN scientific with trig, statistics, linear regression, and keystroke programming.
Open →HP-12C Financial
Microcode-level emulation of the Voyager-series HP-12C — the financial legend still in production today. Time value of money, amortization, NPV and IRR, bonds, and depreciation.
Open →HP-15C Advanced Scientific
Microcode-level emulation of the Voyager-series HP-15C — matrices, complex numbers, numerical integration, and root solving. Widely regarded as the finest scientific calculator ever made.
Open →Texas Instruments TI-59
The most accurate TI-59 programmable calculator emulator available — built on cycle-accurate microcode emulation.
Open →Texas Instruments TI-57
Microcode-level emulation of the TI-57 — 50 program steps, 8 memory registers, and Learn-mode programming with branches and subroutines.
Open →HP-41CX with Modules
The expandable HP-41CX with its rich ecosystem of plug-in modules — reproduced for modern Apple devices.
Open →Games
Retro-inspired games and classic puzzles — built natively for iPhone, iPad, and Mac.
Hole in the Floor
A pixel-art retro arcade climb — eight floors, four foes, drifting holes that won't stay put. Twenty levels, daily challenge, full Game Center support. Now on Apple TV too.
Open →
Preferans
A classic Balkan trick-taking card game — bidding, a talon, four bot difficulty levels, and a score sheet kept exactly like on paper.
Open →
mySudoku
Sudoku that teaches — five honest difficulty levels, hints that explain the technique, a shared daily challenge, and iCloud sync across iPhone, iPad and Mac. Now on the App Store for iPhone and iPad; Mac coming soon.
Open →Other
Tools and utilities that don't fit anywhere else — built natively for Mac, iPhone, and iPad.
One Workshop, Many Machines
Nibble Workshop brings together a growing collection of microcode-level retro hardware emulators and retro-inspired games for Apple platforms. Built natively with Swift and SwiftUI, each project aims for the highest possible level of authenticity — reproducing not just what the original machines did, but how they did it.
Crafted by Miroslav Perovic.