Updated: 24 August, 2026.
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Erwin is a premium, 2048-like sliding-merge puzzle game played on the surface of a 3D cube, for iPhone, iPad, and Mac. The player swipes tiles on the active face, and identical tiles combine into the next, higher value. Swiping the background rotates the cube.
Tiles can slide across the active, front facing side of the cube. Tiles on the edges of the cube can move on either face. Matching tiles merge into one, and after each move, new tiles appear in random empty cells. Tile values start at 2 and double with each merge: 4, 8, 16, and 32. Each merge adds the new tile's value to your score. The highest valued tiles don't merge, and the cube slowly fills up.
The players can rotate the cube to play on all six faces. The game ends when the cube is full and no more moves are possible. The goal is to reach the highest score you can.
Play long enough and quantum effects begin to appear. On a randomized schedule, a newly spawned tile appears in superposition — displaying two possible values simultaneously. On the next swipe that moves it, the tile "collapses" to whichever value would produce a merge with a neighbor, or to the lower value if no merge is possible. The player learns to position the board so the collapse goes their way. Further quantum effects (entangled pairs, teleportation) unlock as the player progresses.
The game shows a 3D cube — similar to a Rubik's Cube — floating in front of a dark background and shifting subtly with device motion, like a hologram. Each of its six faces is a four-by-four grid. Tiles sit in the grid's cells, marked with colors and different shapes indicating their value. The current score is displayed in the top left corner, and a Pause button sits at the bottom center of the screen.
The color palette runs warm: cool cream at the low end, through golden amber and burnt sienna, to deep dark red at the top. Lower-value tiles are pale and neutral; higher-value tiles are warmer, more saturated. Procedural wear textures — grain, scratches, surface variation — mean no two tiles look completely identical.
Erwin collects nothing. No analytics, no telemetry, no advertising identifiers, no third-party SDKs of any kind. No push notifications, no streaks, no "come back and play" mechanics, and the game never interrupts play to sell anything.
Game Center features are opt-in. The game never prompts the player to share, rate, or compare scores, and never artificially stops the player from playing in order to sell something. Completely ad-free: pay once, and the game leaves you alone.
Erwin incorporates many of Apple’s robust accessibility features.
Co-op multiplayer via Game Center - play together with friends or auto-matched players, take turns on a shared cube and watch each other's moves in real time.
Offline play - a single-player Erwin game requires no internet connection, you can play whether you are on a subway, or over the Atlantic.
Universal purchase with Family sharing - pay once, and play on all your Apple devices forever, with up to five additional family members.
Game controller support - play with any supported extended gamepad (models with with two thumbsticks, a d-pad, and a menu button), with haptic feedback in the grips. Tested with a PlayStation 5 DualSense controller on iPad, iPhone, and Mac, but any two-stick controller in this class is expected to work. The D-pad and the left thumbstick both slide the tiles, the right thumbstick rotates, and the Menu button pauses the game.
Erwin is proudly Apple-native: built entirely with Apple’s native frameworks, without any third-party dependencies or cross-platform tools.
Erwin is a solo project by Tamas Bartal, based in Hungary. The game grew out of years of experimenting with 3D with Apple’s frameworks — first SceneKit, then RealityKit. The the 2048-like merge mechanic gave the cube a reason to exist as a game, and the quantum layer adds depth and a unique twist.