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Ace Squared is a multiplayer arena first-person shooter. You can build huge structures and dig tunnels behind enemy lines. Imagination is the only limit. Featuring 32-player servers, different classes and gamemodes.

Key Features

MODIFIABLE WORLD - The world is fully modifiable! Build and destroy structures, and build them back again! Dig tunnels behind enemy lines and collapse their bunkers.
CLASSES - Choose your class! Support your team, provide suppressive fire, dig long tunnels or provide high-precision damage from afar!
GAMEMODES - Includes Team Deathmatch, Zombie and Capture The Flag gamemodes. Fight other team against kills, survive against other players who are zombies, or steal the enemy flag!
COMMUNITY SERVERS - Host community servers with your own configuration as you see fit.

Ace Squared Update Version 0.32.1

Changelog - Version v0.32.1

Changes

Added `ServerProxy:SendServerMessage()` method.
Discord integration:
[list]
Added `/discord` command (opens the projects Discord server).
Added Discord button to the main menu (opens the projects Discord server).

[/list]

Fixes

Fixed no team points being granted in the Team Deathmatch gamemode.
Fixed a bug where players could briefly appear in the wrong position after respawning.

[ 2025-04-21 13:07:46 CET ] [Original Post]

Ace Squared Update Version 0.32

New shotgun Game Description Image
New lighting

Changelog - Version 0.32

Performance & Networking

Hugely reduced input lag for actions like placing voxels or shooting RPGs.
Removed automatic ping kick. Lag compensation is now limited based on the `sv.pingthreshold` cvar (recommended max: 225ms). Players exceeding this threshold will need to lead their shots more significantly.
Voxels now regenerate health gradually over time (`sv.voxelhealth.heal.voxels.count`) after a configurable delay (`sv.voxelhealth.wait.time`) to prevent server lag spikes during regeneration.
Clamped client simulation rate (`sv.player.max.simulation.rate`) to reduce server CPU load caused by high-performance clients.
Fixed block destruction particles causing major performance freezes (Optimization).

Gameplay & Features

Added the new Thunderstrike Shotgun for the Miner class.
Added 'Smooth Mouse' option to the settings menu.
Melee attacks (e.g., Zombie arms, Spades) now use a sphere cast instead of a raycast, making hits easier to land.
Added per-map ambient sound system.
[list]
Added ambient sound to the official Observatory map.

Added map save functionality via the 'savemap' command (saves current world state to .vxl).

Added Light Block system:

Light blocks emit light onto nearby voxels.
Emitted light blends with other nearby light sources.
Includes performance optimizations.
Added an option in settings to disable dynamic light block lighting.

Added a sound effect for grenades colliding with the world or other entities.

Landmine explosions now behave like other explosions:

Spherical shape instead of box.
Damage falloff based on range (no longer always an instant kill).

Rocket turret now uses a simpler box collider for consistency and potential performance improvement.

Disabled players taking damage from falling gravestones.

Blood effects are no longer shown when hitting tents.

Reduced recoil smoothing for increased weapon snappiness.

[/list]

Visual & UI

Improved bullet visual effects:
[list]
Increased visual velocity.
Now uses a box instead of a line renderer for better visuals.
Added a slight random offset to the visual starting position.

Older killfeed items now fade out gradually.

Reworked scoreboard synchronization. This should fix issues where player entries sometimes appeared invisible.

Fixed class model in the class selection view not being team-colored.

Fixed previously equipped capes sometimes not showing in the UI immediately after joining a server and selecting a class.

Fixed the killfeed icon not displaying correctly for flamethrower kills.

Fixed cycling through previously sent chat messages not working.

[/list]

Fixes

Fixed grenade particle trails sometimes rendering in the wrong position when initially spawned.
Various server security fixes.

Server & Modding

Significant backend reworks to better support modding.
Added server API for the ambient sound system, allowing modders to add custom ambient sounds per map.
Added server API (`WorldProxy:Save`) corresponding to the 'savemap' command.
Added server API (`ClientProxy:GetDisplayUsername`, `DisplayUsername:SetDirty`) for modifying player display names, including colored prefixes/suffixes (related to scoreboard rework).
Added new server hooks: `OnPlayerDied`, `OnWorldLoaded`, `OnDamaged`, `OnKilled`, `OnExplosion`, `OnExploded`.
Added `EntityProxy` API.
Added `PlayerProxy` methods: `GetHeadPosition`, `TryGetViewVoxels`.
Added `GrenadeProjectileSpawner` object API.

[ 2025-04-20 16:17:42 CET ] [Original Post]

Changelog - Version 0.31

Changes

Added new assault rifle weapon.
Turrets:
[list]
Now affected by the friendly fire flag.
Hitscan turret fires continuously instead of in bursts.

Various balance changes.

[/list]

Server Changes

Added API for vote manager votes.
Added API for creating explosions.
Added customizable blueprints & icons.
Modders can now choose class blueprints.

Fixes

Fixed hitscan turret shooting through walls.
Fixed hitscan turret targeting tombstones.
Fixed a couple of client/server bugs that were flooding the console.

[ 2025-03-09 18:02:34 CET ] [Original Post]

Ace Squared Update v0.30.1

Changelog - Version v0.30.1

Changes

Added functionality to rotate blueprint structures.
Tweaked player weapon volume falloffshots can now be heard from further away for an improved audio experience.
Implemented balance changes for classic mode.

Fixes

Fixed non-local player jump sound playing repeatedly in enclosed spaces even when no jump occurred.
Resolved player clipping through the world when jumping in confined areas.
Fixed CTF flag appearing in gamemodes other than CTF.
Potentially fixed an issue with cvars not unloading on crash/quit/round end, which previously caused problems like crates not spawning where they should.

[ 2025-02-26 19:08:56 CET ] [Original Post]

Ace Squared Update v0.30

Changelog - Version 0.30

Changes

New gamemode: babel.
Reworked HUD:
[list]
Now displays your points, time, and team scores.
Much prettier design.

Changed mortar projectile explode sound effect.

Changed mortar destroyed sound effect.

Various balance changes.

Tweaked shotgun falloff formula.

Patched bug where players could place unlimited turrets without the previous one being destroyed.

[/list]

Server Changes

Added really fast scripting implementation:
[list]
Performance now comparable to C#.
~150x script speedup based on benchmarks.

Server API enhancements:

Cvars:
[list]
sv.friendlyfire.enabled
sv.player.cc.airclimb
sv.cratespawner.predefinedcrates.enabled
sv.cratespawner.randomcrates.enabled
sv.player.maxturrets

Hooks:

OnShotgunPelletDamageToPlayerCalculated
OnFallDamageCalculated
OnPlayerDestroyVoxels

Proxy methods:

PlayerProxy:Equip
PlayerProxy:Unequip
PlayerProxy:IsEquippedInSlot
PlayerProxy:PlaySfxEvent
PlayerProxy:IncrementScore
PlayerProxy:GetClass
ServerProxy:GetPlayers
ServerProxy:SendActionMessage
ServerProxy:IncreaseTeamScore
ServerProxy:GetTeamScore
ServerProxy:EndRound
WorldProxy:GetWorldVoxelDimensions

Basic gamemodes API

[/list]

Server config validation:

If your server config file is incorrect, the server will now shutdown instead of resetting the file.

[/list]

Fixes

Fixed shotgun damage falloff formula not being applied.
Fixed local player viewmodel twitching occasionally when AFK.
Fixed player clipping inside the world when running down stairs (now collides properly).
Fixed voxel linker issues where multiple diagonally connected voxels sometimes failed to link (e.g. sometimes block gun blocks would disappear when they should collide and attach to the ground).

[ 2025-02-23 16:03:08 CET ] [Original Post]

Ace Squared Update v0.29

Changelog - Version v0.29

Major UI Rework

Completely reworked the UI for a cleaner and more intuitive experience.
You can now change your cape while connected to a serverno need to reconnect.
Removed the team join menu; changing teams is now done via the scoreboard.
Added a "Reset to Defaults" button in the settings menu.

Gameplay & Mechanics

Various balance changes.
Implemented 3D spawn points for tents and CTF flags.
Changed Engineer's jetpack model to a higher-quality version.
Tweaked default auto-climb parameters:
[list]
Faster camera interpolation time (250ms 125ms)now adjustable with cvar: sv.player.cc.cam.climb.duration.
Reduced velocity loss when climbing, making movement smoother.

Mouse scroll up/down actions are now fully customizable in keybind settings.

[/list]

Server & Debugging

Added a --debug flag for servers, enabling more detailed logging.
Various small server-side fixes for improved stability.

Fixes

Fixed a world state synchronization issue where structures could appear on the client but not on the server.
Fixed items (e.g., drill gun) not moving down correctly when reloading.
Fixed the `OnPlayerRespawnTimerStart` callback not working.
Fixed an issue where other players' arms would sometimes appear bugged.

[ 2025-02-12 16:04:19 CET ] [Original Post]

Changelog - Version v0.28

Changes

Significant Netcode Rework:
[list]
Voxel updates are now far more bandwidth-efficient, significantly reducing data usage.
Server-to-client updates are faster, resulting in smoother and more responsive gameplay.

Added customizable skybox for server administrators, along with other environment customization options such as fog color.

Tweaked all hitboxes to better represent the actual character model.

Reworked character collision physics with a custom system:

Fixed a bug where players could bug inside the world when structures were placed where they were running.
Implemented smoother autoclimb.
Fixed players floating if they hit voxels above (or the world roof) when jumping or using the rocket launchercollision now works as expected.
Resolved issues where players would get stuck when climbing voxels.
Fixed players floating slightly in the air during movement or collisions.

Implemented 3D spawn points, allowing spawns under roofs or underground.

Enabled running while throwing grenades.

Added keybinding options for toolbelt items.

Improved logic for fetching official servers, making the server list more reliable in showing official servers.

Added pitch shifting for all local player item use sound effects.

Introduced new cvars:

Player climb multiplier.
Zombie pick chance.

Expanded APIs:

New functions: `GetPlayerTeam`, `SetPlayerTeam`, `CanJoinTeam`.
New hooks: `OnSelectTeam`, `OnZombiesSelected`, `OnSetSpawnProtectionTimer`.

Added new sound effects:

Mortar shoot.
Mortar projectile explosion.
Jumping.

Various balance changes.

[/list]

Fixes

Fixed a bug where players could become invincible in certain scenarios.
Resolved an audio misconfiguration that allowed players to hear others walking, digging, jumping, etc., from across the map.
Fixed item overrides not working for zombies via the scripting API.

[ 2025-01-26 18:02:12 CET ] [Original Post]

Changelog - Version v0.27.1

Changes

Class selection kick time increased to 60 seconds (previously 30 seconds).
Removed auto-spawning crates from the classic CTF gamemode.
Implemented various balance changes.

Fixes

Fixed the "multiple clients" bug that occasionally prevented players from connecting.
Fixed the minigun loop sound effect not playing.
Fixed an issue where players were bugged as the Deuce class after spawning from spectator mode following a gamemode change.

[ 2025-01-06 16:40:35 CET ] [Original Post]

Changelog - Version 0.27

Changes

Gameplay

Added a cvar for player air resistance.
Reduced default movement cvars.
Added cvars for:
[list]
Head, torso, legs, and arms weapon damage overrides.
Tent restock cooldown.
Block regeneration time and amount.

Auto-select class is now used as an AFK kick system.

Class configuration (available classes and class items) is now dynamic and modifiable via scripts on the server side:

Access methods: GetClassConfiguration and SetClassConfiguration.

Introduced the Deuce class for classic gamemodes:

Equipped with a flamethrower, mortar, rifle, SMG, shotgun, deployable crates, landmine, and grenade.
Equipped landmines are now team-colored.

Classic CTF gamemode added.

[/list]

Modding API

Added support for temporary bans and mutes with durations (automatic unban/unmute after the time expires).
Introduced BanManagerProxy and MuteManagerProxy to the modding API.
Added modding API functions:
[list]
IsCvar, SetCvar, GetCvar.
GetGamemode, GetMapName.

Modding API improvements:

Added basic file I/O.
Added basic filesystem operations.

[/list]

Graphics and Sound

Graphics tweaks.
Fog adjustments.
Reworked muzzle flash effects.
Sound tweaks.

Fixes

Fixed scoreboard item overflow.
Fixed blueprint cue not appearing red when there were insufficient uses left.
Fixed janky autoclimb near the world max height.
Fixed headshot and hitmark sounds playing multiple times with the shotgun.

[ 2025-01-04 22:50:03 CET ] [Original Post]

Changelog - Version v0.26

Changes

Added Oceanian official server.
Ping restrictions: Too high ping is now only applied to normal (non-authenticated) players.
Chat messages:
[list]
Sanitized from HTML tags.
Reduced bandwidth usage for colored chat messages.

Added 1 reserved server slot for server admin, allowing them to connect even if the server is full.

Server cvar system: Configure your server on the fly, including:

Respawn time
Round duration
Weapon fire rate, damage, spread, and ammo
Grenade explosion radius
Class base movement speed
Max health
...and much more!

Shotguns:

Now fire 9 pellets by default.
Spread pattern tweaked for tighter grouping.

Reworked character controller movement:

Now velocity-based:
[list]
Transitions like walking to running now take time to accelerate.
Rocket launcher RPG applies velocity in XYZ (not just Y), enabling horizontal launches.

Slower XZ movement while in the air.

No sprinting allowed while airborne.

[/list]

Scoreboard rework:

Prettier UI.
User options: Steam profile and mute (unlock cursor by pressing RMB while the scoreboard is open).

Logging improvements:

Improved file logging to prevent hard drive overflow (server + client).
Increased performance by flushing logs every 1 second instead of for every log statement.

Graphics improvements:

Better fog effects.
Increased voxel noise for improved detail.
Enhanced ambient occlusion.

Balance changes implemented.

Improved minigun model.

[/list]

Fixes

Fixed bug preventing players from joining the zombie team during active zombie rounds due to "too many players."
Fixed zombie LMB digging only granting 1 voxel instead of the correct number of broken blocks.
Fixed incorrect local client-side projectiles when firing shotguns.
Fixed deploy cue not being destroyed when spectating.
Fixed inability to deploy directly below crates.
Fixed issues where structure placement was blocked unnecessarily.

[ 2024-12-18 15:45:37 CET ] [Original Post]

Patch Notes - Version v0.25

### changes ###
- implemented no-deploy zone near dropped ctf flags
- added cinematic camera mode for spectator. access via spectate.freeflight.camera.cinematic prefix in the console.
- added client console commands savecfg and resetcfg (operates on client cvars)
- added option to mute chat in settings
- added option to toggle chat in the settings
- fallen y-distance (used in dmg calc) is now reset upon impulse event. this basically results in better fall damage calculation when using red rocket launcher
- block uses are now shown in the UI when melee item is equipped
- added invert mouse option to settings
- miner's spade now always digs 3x3x3 area
- new items
- added knife for sniper
- added commando for engineer
- added new grenade for commando
- numerous balance changes
- viewmodel tweaks
- graphics tweaks
- sfx tweaks

### fixes ###
- fixed sometimes not being able to build blueprints when looking downwards near water
- likely fixed bug where sometimes you were assigned random username
- fixed screenshot mode not disabling certain ui elements
- fixed PlaceVoxels api not replacing voxels

[ 2024-12-09 17:38:33 CET ] [Original Post]

Minimum Setup

OS: Linux (64-bit. SteamOS compatible)
Processor: Dual Core CPU (Intel Core i3 1115g4 or better)Memory: 4 GB RAM
Memory: 4 GB RAM
Graphics: Dedicated graphics card (NVIDIA GeForce GTX 950 or better)Network: Broadband Internet connection
Storage: 1 GB available space