01
The studio
Shabeer Games is the name the games carry. Behind it is a company registered in England as Shabeer Plumbing Ltd, at 72 Basildon Avenue, Ilford IG5 0QQ, with Shabeer Ziarmal answering for what it publishes.
The name on the certificate and the name on the store listing are not the same thing, which is ordinary enough, and it seemed better to say so here than to let anyone find it out from a bank transfer.
What gets made
Puzzle games, one at a time, kept small enough that one person can hold the whole of one in their head. Each is designed, drawn, written and released here, then maintained rather than abandoned for the next thing.
02
No back end, on purpose
Whatever a game needs to remember goes into its own private folder on the handset, which Android keeps out of reach of everything else installed. No account is created, no identifier is minted, no event is counted, and no advertising library is compiled into the build.
A game with no server behind it cannot leak a database it does not have, cannot be sold along with a user list, and will still start up in ten years' time. The trade is that progress lives on the phone and nowhere else — worth knowing before a handset is replaced rather than after.
03
Refraxis
com.prismgrid.refraxis
A quiet puzzle about light. A beam leaves an emitter, and a grid of mirrors, splitters and prisms stands between it and the targets — rotate and place the pieces until the light bends, reflects and divides its way onto every one of them.
Pieces behave the way optics do: flat mirrors reflect, splitters halve a beam, prisms bend it, and coloured filters mean some targets take only the right colour, so beams have to be routed and recombined. The beam redraws live as each piece turns, so a solution is watched into place rather than guessed at. Sixty hand-built levels run from gentle to tricky with progress and best solutions kept, a board of the day arrives dated, a sandbox lets you build arrangements of your own, and a relaxed hint is there when a board locks up. No timer, no failure state. It runs entirely offline, with no account and no advertising.
Refraxis on Google PlayWhat a real prism does that a grid square cannot
A puzzle piece bends light by a fixed amount. Glass is less obliging: how far a ray turns depends on its colour, because the refractive index does. Put a wedge of glass of apex angle A in a beam and, at its most symmetric, the ray leaves deviated by δ = 2·arcsin(n·sin(A/2)) − A. Run that for red and for violet — with n from Cauchy's n = A₀ + B/λ² — and the gap between the two answers is the rainbow. There is a catch built into the same formula: n·sin(A/2) cannot exceed 1. Push the wedge past that and the ray never leaves the glass at all.
63.2°red at 656 nm turns by this much
66.4°violet at 486 nm turns by this much
3.17°the whole spectrum, corner to corner
34.5°critical angle inside this glass
68.1°past this apex, violet never escapes
69.3°past this apex, nothing escapes
Not on this bench: no board, no grid, no pieces to turn and no beam to route. It is one wedge of glass, held at its most symmetric, answering a question about angles. What to place where is not something a formula will tell you.