Sometimes I make little games, mostly played in web browsers because that seems strangely to be the best platform for building such things.


3Doku is a 3D version of sudoku (or, if you are a mathematician, a 2D version of sudoku wrapped around a cube). Each of the six faces of the cube is a 4×4 grid, which must contain the numbers 1–16. The other groups are bands going around the cube: pick any square, and move either vertically or horizontally, folding around the edges of the cube as you go. Once you reach the square you started from, you should have covered 16 squares — which should of course contain the numbers 1–16.

3Doku is also available as an Android app.


4tris is much like Connect Four, except that when you make a line, you simply get a point. The line vanishes, and any new lines made when the other blocks fall are scored in the same way. The game ends when the board fills up. Whoever made the most lines is the winner.


monsters is a wholly original AR monster-catching game. Just point your phone at the monster, and tap the ball to throw it at the monster. (You do not need to swipe the ball; I don’t know why people keep trying to swipe it as if there is another similar game where you do swipe it. But I have checked, and there isn’t.)

Sadly it only works on Chrome for Android, since it uses the camera API which isn’t supported on iPhone, and the motion-sensor API, and just generally a lot of fiddly and hard-to-debug things that aren’t really worth implementing for the nine people who actually use Firefox on mobile. But if you have an Android device with a back-facing camera and accelerometers, then do try to find all the monsters in my game.

But if you do have an Android device, you can play here.

I am well up for pull requests with new monsters.


Gravity is a two-player, physics-based, deep-space shooter. Two enemy ships for some reason take turns blasting missiles at each other — but between them is a system of planets whose gravity bends the missiles’ trajectories.

It uses the HTML5 Canvas element, and to be honest, most of the work was in making the explosions pretty.


I have set some crosswords you can play on this site.

Doctor Who Technobabble or UK Government Term

I made a rather silly game to test your knowledge of Doctor Who and/or UK governance. Probably fairly easy for Brits and pretty hard for Americans.


In 2016, Paul and Katie got married, and it was the most strongly branded wedding I have ever seen — just look at their wedsite. Mark decided there had to be a block-matching game based on this branding, and Paul and Katie love the 2p pushing machines that take all your money at the seaside. And it was for a wedding, so obviously it was going to be a two-player co-op.

Here is the finished product.

Analogue Snake

In these modern times, Snake looks as dated as the Nokia phones that made it famous. But need it?

Perhaps the issue is that the low-res, right-angle-based graphics are dragging it down. So I created Analogue Snake, where you can turn at any angle you like.

But that still seemed a little dated. So I thought, perhaps the issue is the rather primitive game engine. So I built Analogue Snake II, which has ragdoll physics and gamepad/mouse controls.

To be honest, it still feels a tad old-fashioned.