Playable Project

Four dossiers. One getaway car. Vanta wants both.

Elevator Madness: Rival Protocol is a browser spy game set inside a 14-floor Art Deco hotel. Two agents race down the tower, and every lift changes the route.

By Eric Rhea Three.js browser game
Play Rival Protocol Read the briefing
Nova crosses an Art Deco hotel floor during a dossier race against Vanta.
The car is waiting in the garage. It will leave with the first spy carrying four dossiers.
Hotel
14 floors
Dossiers
4 of 7 to escape
Opposition
Vanta and guards

Vanta is already looking for the next red door

Nova starts near the top of the Grand Metropole. Vanta starts on the other side. Seven red doors hide dossiers across the tower. Either spy can win by carrying four to the getaway car on the garage floor.

Getting there is the hard part. The elevators serve different stretches of the building, so a fast ride can still leave you on the wrong side of the next dossier. The tower map shows where each shaft goes. Vanta is making a plan, too.

Read the floor, then pick a route

Move with A and D or the arrow keys. Press Up at a red door to take its dossier. At a shaft, Up calls or boards the car. Hold Up or Down to ride, then step out with Left or Right. The game also has a touch pad and action buttons for phones.

Blue doors release guards. Their shots come high or low: duck under a high shot and jump over a low one. You can fire, jump-kick Vanta to knock a dossier loose, or place a mine in a path they may use. Lamps can fall when shot. The pause menu offers lower effects, while the title screen has a calm mode for its animated introduction.

Start the missionChoose Agent, Veteran, or Legend difficulty and enter the hotel. Build notesSee how the tower, rival, art, and sound fit together.

The title promises a chase. The floors make you earn it.

Elevator Madness title screen introducing Nova and Vanta.
Nova and Vanta arrive with very different scarves and the same objective.
The hotel during a live mission, with the floor dial and dossier counts on screen.
During a run, the floor dial, dossiers, and rival position keep the route visible.

Build notes: one hotel, several kinds of pressure

Gamelab: Elevator Madness, originally published on Advisory Hour on September 27, 2026, follows four failed builds and the model change that got the game moving.

The current game runs from static files with a local copy of Three.js r185. Its cutaway hotel uses five elevator shafts with overlapping service ranges. The red doors are fixed across the tower, while guard doors give each floor another reason to move carefully.

The presentation mixes 3D scenery and characters with illustrated textures, sound samples, and a piano score synthesized in the browser. A lower-effects option reduces the render load. The route and the rival matter most when the player can still read the next door, shot, and lift.

Changelog: from a short descent to a rival race

An earlier three-floor prototype tested a connected hotel, two dossiers, guards, and paired elevators. Rival Protocol is the current playable build. It expands the tower to 14 floors and makes Vanta compete for the same seven dossiers. This page follows the current game; the earlier build remains part of the project record.