About

Wall-X is a physics puzzle you play in your browser. There's no company or studio behind it: the game was designed, coded and published single-handedly by an independent developer. The stages, the physics engine, the server and these guides all come from the same person.

The idea

In most draw-to-solve physics puzzles there's a solution and you find it. Wall-X has two stages: first clear the stage, then clear it again with less ink, a more elegant solution. Stars and the least-ink rankings reward that second step. The satisfaction of returning to a stage and shaving 10 centimetres off your line is the heart of the game.

How the stages were designed

The game has 500 stages split into 10 Levels. The first two Levels were designed by hand: a new tool or obstacle arrives every five stages, and the stages before it teach you how to use it step by step.

Designing and testing 500 stages by hand isn't practical for one person, so most stages in later Levels were prepared with a generator and then measured one by one. Two things were verified for every stage: it can't be cleared without drawing, and it has a solid 3-star solution. Every obstacle was also checked to have a real job in its stage: obstacles that could be removed without making the stage easier were taken out. Stages were then ordered by their measured difficulty.

Technology

The game is built on a deterministic physics engine that simulates every shot in real time. A copy of the same engine runs on the server and verifies each winning shot by replaying it. That keeps the rankings fair: every result on the list is a shot that was really played. See The Wall-X physics engine for the details.

Wall-X needs no sign-up; progress is saved on the player's device, and anyone who wants to can sign in with Google to carry it across devices. The game is playable in English and Turkish, and Android and iOS apps are on the way.

How the game pays for itself

Wall-X is free, and ads cover the server costs. Ads appear between stages and with optional solution hints; they never cover the play area.

These guides

The guide pages on this site are written from the game's own physics values. The numbers given for how a tool or obstacle behaves are the numbers the game uses. The guides are updated as the game changes.

Contact

For questions, bug reports or suggestions, see the Contact page. Messages are read and answered by the developer personally.