RobozzleReboot vs Modstack

Robozzle Reboot brings back the classic robot-programming puzzle game to iOS — write tiny programs to guide a robot around a grid, collect every star, and reach the end. No syntax to memorize: every puzzle is solved by dragging instructions into place. HOW IT WORKS Program your robot with a small set of building blocks: move forward, turn left, turn right, paint a tile, and call one of five subroutines (F1–F5). Any instruction can be conditioned on the color of the tile the robot is standing on, so a handful of slots can express surprisingly deep logic. Run your program step-by-step or at full speed, and iterate until every star is collected. CAMPAIGN + COMMUNITY PUZZLES Work through a curated Campaign of puzzles from Robozzle's original creators, sorted by difficulty from your first steps to genuine head-scratchers. Or dive into Community Puzzles — the full catalog, searchable and sortable, with ratings from other players. BUILD YOUR OWN Design and publish your own puzzles with the built-in puzzle editor. Lay out the grid, place stars and colored tiles, test your solution, then share it with the community. TRACK YOUR PROGRESS Sign in with Apple to claim a pseudonym, appear on the global Leaderboard, and rate the puzzles you play. Earn points for every puzzle you solve, and pick up right where you left off — your progress is saved automatically. NEW TO ROBOZZLE? Start with the in-app Tutorials, a short series of levels that introduce each instruction one at a time. Robozzle is an original game by Igor Ostrovsky and other contributors (robozzle.com). Robozzle Reboot is a fresh implementation, built with the original author's agreement.

Modstack is a tactile programming puzzle about making big moves with a small set of commands. Place Move and Turn tiles into a program, stack modifiers to change what they do, then run your machine. Watch the robot execute each step, learn from the result, and compress your solution until it reaches par. WHAT YOU GET - 36 handcrafted campaign circuits across six chapters - A gentle visual introduction to programs, repetition, and mirroring - Ordered relays, switches, gates, and precision Expert Circuits - A new Easy, Medium, and Hard Daily Circuit every day - Layered hints that nudge without giving away the whole solution - Offline play with progress stored on your device - Purpose-built sound and haptic feedback - No ads, no account, and no tracking The Foundations chapter and Easy Daily are free. A single Full Game Unlock opens the remaining 30 campaign circuits plus Medium and Hard Daily. There is no subscription.