Play Citadel Remonstered

You can now play the WebGL version of Citadel Remonstered directly in the browser (PC or mobile).
It's a complete JS/WebGL port, using 90%+ of the original assets and algorithms and extended to support touch controls. Before you start, it is advisable to read at least the Controls section below.


Start Game

Objectives

At first, you find yourself at the emergency entrance to the Citadel, in the underground part of it, which had originally been constructed by the now-extinct alien race once inhabiting B104‑GS12 (see the background story). You have nothing with you, as you did not expect to have to leave the Scout. Your first task is therefore to find some means of defence and then start exploring the Citadel in order to unravel its mysteries.

The aim of the game is to escape from the Citadel. As you quickly realise, you cannot single‑handedly restore order in the base; therefore, you should try to destroy it, following the orders received while still on the X16. After getting out of the alien underground maze (the Basement), which has three levels, you will reach the main, human‑built part of the Citadel. You then have some choice of your further path throughout the building complex and need to find six components required to construct a powerful bomb, which you then need to detonate in the central part of the Citadel to annihilate it. You can only hope that you find some means of escape in the process.

Each part of the bomb is in one of the six extensions built around the central part of the base. Make sure you find the bomb part before leaving every extension, otherwise you will have to go through it again. Only when all parts are found can you enter the core of the Citadel.

Movement and interaction

Note: When you start the game, you might need to first click or tap onto the game canvas so that it is in focus and receives control events. This depends on the browser and how you start the game. You can press Esc twice in quick succession in the game to unfocus and let the browser/OS act on controls again.

You navigate the 3D world of the Citadel by using the keyboard and mouse, or touch controls - see the Controls section. You can interact with the environment by pressing the action key, tapping on an object while it's close and moreless in the middle of the screen, or using the designated mouse button if you are not holding any weapon. This is how you find information about your surroundings, press in-game buttons, or insert keycards into card slots. While doing so, watch for important information in the dialogue box at the bottom of the screen. Some actions in the game are triggered by getting near objects; this includes doors that open automatically, teleports, and objects you can collect, such as weapons and ammo.

You will have to solve riddles to make progress throughout the levels or find hidden areas. These may include buttons on walls opening or closing doors, removing secret walls, or making items appear. Sometimes a button on one side of the map will open a door on the other, so be prepared for some exploration.

Your movements within each level are tracked on a map, which can be brought up by pressing the M key or tapping on the compass. It helps you figure out where you've been, what you may have missed, and where to go next.

In-game controls

The game can be played using the keyboard (and optionally mouse), or a touchscreen. It tries to detect whether the device uses a touchscreen and then activates the additional overlay for touch guidance. It can always be toggled in the initial or in-game menu.

Keyboard
Keys Action
Tab or Esc Bring up the in-game menu (this was not available in the original game)
W,A,S,D or arrows Move
Q,E Turn
Ctrl or Enter Shoot
Shift Run (this was not available in the original game)
Space Action key: examine/use
p Pause game
m Map on/off
F1-F4 Screen modes: full screen, full screen with original aspect ratio, full screen with panel, windowed with panel.
1-7 Weapons
8-0 Cards
[,] Cycle through weapons and cards
i Invert mouse buttons (this was not available in the original game)
z Toggle the dreaded "hitlines" when bumping into walls or objects (off by default)
` Show FPS and location overlay

Touchscreen
Touch area Action
Left top menu icon, or health meter Bring up the in‑game menu (this was not available in the original game)
Bottom left navi circle Movement and turning
Bottom right fire circle Shoot
Compass/td> Map
Weapon icon Cycle through weapons
Card icon Cycle through cards
Middle of the screen Action: examine/use. The button/slot/item has to be close to and facing the player

Note that the touch support should be automatically activated if detected, however you can always activate it manually in either the main or the in-game menu. If you use touch, some of the actions that can only be triggered by keys (e.g. toggling hitmarks, or FPS) are not available, but they are not crucial and some can still be toggled from the menus.

Xbox Controller
Support TBD.

Progression and save system

The Citadel is huge. It had originally been built as a small research facility over the alien ruins and then extended over the years into the central core and six peripheral building complexes. Each complex typically consists of two to three levels. To complete each level, you must find the exit leading to the next one. Note that to finish the game, you also need to find one part of the bomb in each of the six peripheral complexes, so make sure you explore them thoroughly.

After completing each level, you will be presented with achievement statistics such as the time taken and the number of enemies defeated. You will also be given a chance to save the game. Note that you cannot save within levels—only between them. Games are saved to your local browser cookies so they will be visible only on the device and browser you used to play the game. They are not stored on any server.

Note that, unlike in the original game where you had only a few training levels available which were not part of the campaign, this version allows you to play any level in training mode. You can access them through the "Training" option in the main menu. Selecting "Start" starts the campaign.

Combat

On your way through the Citadel, you will encounter numerous enemies. They differ in speed, aggression, weapons, and resistance to different forms of attack. Fortunately, you will also find different weapons that you can use, ranging from a simple handgun, through a machine gun, to a flamethrower and rocket launcher. As you enter the Citadel empty-handed, search for a handgun close to the starting point. The more advanced weapons can be found later in the game.

Each weapon uses ammo, which you can also find around the levels or salvage from enemy corpses. Explore the area and collect additional ammo, as you can stack it, and it will surely come in handy in the heat of battle. There is also a risk of your weapon jamming or breaking—if this happens, you will need to find a new weapon.

You may die a lot at first, but each enemy has its weak spots and certain behavioural patterns, which you should try to discover and exploit. Some enemies are immune to certain weapons, such as metal robots which are unaffected by fire. Use tactical techniques such as luring enemies or hiding behind doors or around corners. Moving sideways while turning to avoid enemy shots, while keeping them in your crosshairs, is just one of several effective strategies. Note that enemies do not randomly reappear—once you clear an area, it stays safe.

Look around for other useful items, such as medkits, which replenish your health, and adrenaline shots, which speed you up. You can also find some spirit (most likely part of medical supplies used for experiments) - although fun for a moment, it will disrupt your movement and aiming for a while, so think twice before picking it up.

Compatibility

The WebGL version has been tested on the following browsers (latest versions as of February 2026):

  • Google Chrome
  • Google Chromium
  • Microsoft Edge
  • Samsung Internet
  • Mozilla Firefox (WebGL performance issues)
  • GNOME Web
  • Tor Browser