Synergy introduces a variety of new entities, weapons, vehicles and textures that you can use in your level designs. In this guide we'll go through most of them.

The most useful additions are the new game logic entities, which help you create more interesting and cooperative gameplay.

Synergy adds new entities that fall into two types: Point Entities and Brush Entities. Point Entities are invisible logic objects, while Brush Entities are volume-based triggers built from geometry. Here's a list of the new ones you can use in your maps:


info_player_coop
Defines where players will spawn. Place multiple spawn points to prevent players from spawning inside each other. Make sure to still have at least one info_player_start in your map.

info_player_equip
Specifies the weapons, items, and ammo players receive when they spawn.

info_spawn_manager
Useful for teleporting players to specific locations and updating player spawn points dynamically.

info_global_settings
Used to configure core co-op behavior in a map. It allows you to control whether players always respawn at the active info_player_coop, or near the safest living teammate. This entity can also be triggered to restart the map entirely.

hud_timer
Displays a visual countdown on the player's HUD when triggered with the Start input.
In the Object Properties, you can set a Timer Text message to appear above the countdown.
Use the OnTimer output in the Outputs tab to trigger events when the timer reaches zero. Be sure to set the duration in the Parameter field.


trigger_coop
Allows you to create triggers that require all players to be inside the trigger zone simultaneously.
It can also be used to control the HUD teamwork indicator.

game_zone_player
Counts how many players are inside a designated area.

Synergy includes additional weapons and vehicles not found in standard Half-Life 2. These can be placed directly in your maps to give players more variety and firepower, or to create unique combat scenarios.


weapon_mp5k
MP5K submachine gun. Uses pistol/SMG ammo.

weapon_mg1
Combine machine gun. Uses AR2 ammo.

weapon_deagle
Desert Eagle. Uses .357 ammo.

weapon_pipe
A pipe melee weapon which hits hard but with slow attack speed.

[Pictured: Jeep Elite, Buggy, Van and Truck in order.]

prop_vehicle_mp

The new multiplayer vehicle entity lets you place vehicles in a map. Make sure to set the vehicle's World Model and Vehicle Script File in the Keyvalues.

Please note that this vehicle entity doesn't allow for turbo/boosting, so in HL2 campaigns, the prop_vehicle_jeep is better suited.

Synergy introduces 4 new multi-seat vehicles:


World Model

Vehicle Script File


World Model

Vehicle Script File


World Model

Vehicle Script File

Note: The van has 5 skins to choose from by setting the Skin value between 0 and 4.


World Model

Vehicle Script File

Synergy also includes a variety of new textures for your maps. Simply search for "Synergy" in the texture browser in Hammer.

The collection features both indoor and outdoor textures, including animated caustic textures for underwater or water-adjacent areas, as well as scrolling waterfall textures.

Stay connected and get the most out of your Synergy experience by joining the community and exploring additional resources:

Synergy Discord Channel[discord.gg] – Chat with other players, find friends to play with, and get real-time support from the community.

Synergy Store Page – Read the latest updates and browse the community hub.

Synergy Website[synergymod.net] – Visit the official website for more information about the mod.

Want to create a map for Synergy? Get started with this guide about setting up Hammer++!
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3421849065