Use WASD or Arrow keys to move. Watch closely as the player controlled tile does not appear different than the others and other rows or columns may get moved with you. Clear goals by getting all of the same color tiles in a line vertically, horizontally, diagonally, or in a 2x2 box.

Signal Signs

The lines drawn at the top will determine the X position of the vertices in the resulting drawing and the lines drawn on the left will determine their Y position. Left click and drag to draw lines. Press Space to see the result. Press Space again to restart.


Try to create the target picture. Left click and drag to move bitmaps to open slots. Right click a map delete. Left Click a gate to change its type (OR, AND, XOR, NOR, NAND, XNOR for dual input NOT, Shifts, Rotations, and Reflections for single input) and Right click to perform its operation. Left click a slot to spawn a new map.


Bubbles will expand until they hit another that shares a color or a color they contain. Click to toggle a bubble. ‘R’ to restart. What is the probability for each different shape that clicking on an idle bubble will result in a cycle of expanding and contracting?


Stochastic cellular automata rule simulator. The percent chance of a cell being alive next generation is equal to the sum of its region’s base percent chance, the region’s living neighbors change value times their weights, and the region’s dead neighbors change value times their weights. Try overlapping regions for interesting effects. You can click and drag to change region dimensions as well as using sliders. ‘R’ will restart. A very small percentage of people may experience a seizure when exposed to certain visual images, including flashing lights or patterns.


Click on cogs to move them around or an empty hex to spawn more. Pushing against a red button will activate that cog next cycle. Arms can push, pull, turn, copy, or destroy. Right click an edge to change what’s there. Click the center button to start the cycle. ‘R’ to Restart.


Inspired by the undecidability of domino tiling. Try to get 4 or more colored tiles in rows or columns with adjacent tiles sharing colors where they meet. Score more points by setting up consecutive combos. Left and Right Arrows to move the active tile. Down Arrow will soft drop. Up Arrow or Space for sonic drop. Shift for Hold Rotations and reflections are achieved by colliding those blocks with a colored tile.


Ships are indestructible. Ships move octilinearly then eliminate a square they could move to from their new location. The side that makes the last move wins. Click on your ship to move.


Happy little trees :) Grow them with left click or chop down with right click. Try to get a stable forest.