Get the input you need for the invisible maze
This is a guide to DFX’s first-person browser adaptation of In the Walls of Eryx. You play a prospector trapped among nearly invisible barriers. The game is based on the Lovecraft and Kenneth Sterling story, but the story’s ending is not a route map or a tested solution for the game.
The official controls pair WASD movement with mouse look after you click to capture the pointer. Use the table when deciding whether you need information, movement or the flame pistol. We have read the published instructions; no completed maze run or shortest route is claimed.
| Task | Input | Published behavior |
|---|---|---|
| Move / look | WASD / mouse | Click the game first to capture the mouse |
| Run | Hold Shift | Moves at a higher oxygen cost |
| Reveal a barrier | E | Scoop and throw mud; a splat marks a wall briefly |
| Draw / holster pistol | Q | Switch the flame pistol in or out |
| Fire | Left click | Uses the flame pistol when drawn |
| Open map | M | Map control |
| Next-goal hint | H | A brief glimpse, once per stage |
| Pause | Esc | Pause control |
Use mud as a temporary wall marker
E scoops and throws a handful of mud. The official description says the splat shows where a wall is for a moment. Treat it as a way to reveal a barrier while examining a turn, rather than a permanent outline of the entire maze.
A useful sequence is to inspect the direction you are considering, reveal the nearby wall with mud, then consult the map before committing to more movement. That is a planning suggestion based on the controls, not a tested sequence of coordinates. The published page does not establish how long a splat remains visible or a fixed number of throws needed to solve a stage.
M opens the map. It is a separate source of orientation from a temporary mark on a wall. The description does not say that opening the map pauses oxygen use, reveals every barrier or plots a complete exit route, so none of those behaviors should be assumed from this guide.
Use H for the current goal and avoid unnecessary running
H briefly shows the way to the next goal, and the official limit is once per stage. Think about the direction you want to resolve before using that glimpse. Repeatedly pressing H is not a documented substitute for reading the maze.
Your mask’s oxygen drains with movement, and holding Shift to run drains it faster. When you are unsure of a turn, running around to test several directions carries the stated higher oxygen cost. The guide therefore favors checking the available information before spending more movement on a guess.
No exact oxygen drain rate, optimal walk/run ratio or guaranteed completion time has been verified. Esc is the listed pause control; the page does not document which other screens stop the simulation. If you need to pause, use the control explicitly labeled for that purpose.
Keep the flame pistol separate from your navigation tools
Q draws or holsters the Carter M-33 flame pistol, and left click fires it. The official page emphasizes its small fuel supply. The cover screenshot shows the weapon and separate oxygen and fuel displays; those displayed values belong to the developer’s captured scene, not a resource budget measured by Nisu.
Mud and the map are the documented tools for finding your way around invisible walls. The page does not describe firing the pistol as a method for marking a route or replenishing oxygen. Avoid treating every click as a harmless interaction once the pistol is drawn.
The developer describes watchers gathering outside the maze without entering it. That atmospheric description is not proof of a combat strategy, a safe firing distance or a way to change the ending. The practical reference here stays with the controls and resource limits that are actually published.
Recognize the interface in a short gameplay preview
Vip Vop’s October 11 recording shows the same jungle scene, flame pistol and corner gauges as DFX’s official game gallery. The checked view around 15 seconds shows the drawn pistol over the muddy clearing; around 35 seconds a red glowing crystal is visible ahead.
Use the clip to recognize the scene and interface before looking for the written controls. It is a short preview, not a verified escape route or demonstration of the once-per-stage hint. The uploader links to the game on DFX’s domain.
Short gameplay preview with the jungle, drawn pistol, gauges and glowing crystal. Checked footage is not a complete maze solution.
Quick help
How do I find an invisible wall?
Press E to scoop and throw mud. Where it splats, a wall is briefly revealed, according to the official instructions.
Can I use the hint repeatedly?
H gives a brief glimpse toward the next goal, once per stage. The official page does not promise unlimited hints.
Why does oxygen run out faster when I sprint?
Running with Shift has a higher oxygen cost than ordinary movement. No exact drain rate or tested completion budget is provided here.
Does M pause the game?
M is listed as the map control; Esc is listed as pause. The official instructions do not establish that opening the map pauses oxygen use.
Is this the solution to the original short story?
No. It is a controls and resource reference for DFX’s browser game. The literary plot is not used as a game walkthrough or verified exit route.
Source and scope
This independent guide draws on Play the Eryx game on itch.io, checked on Oct 12, 2026. Published requirements and rules come from the linked sources; practice routines and examples are Nisu editorial suggestions.