HLDMClient

A custom Half-Life Deathmatch client built on top of the Half-Life SDK. This client adds many quality-of-life improvements, compatibility fixes, and optional visual enhancements while remaining compatible with both modern and legacy HLDM servers.

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🚀 Features & Changes

🎨 HUD Enhancements

• Added support for color tags
• Added support for change HUD coolor (hud_color "255 160 0")
• Added speedometer toggle with hud_speedometer 1 , 0
• Added using F1 - F10 keys for HUD menus (hud_menu_fkeys 1)
• Added timers:
  • Time left until map ends (hud_timer 1)
  • Time elapsed since map start (hud_timer 2)
  • Local personal timer (hud_timer 3)

-Added fps counter like in rofi s client (NGHL) -hud_fps 0 , 1 , 2 , 3 - 0 disabled - 1 three colors - 2 two colors - 3 one color like in rofi s client (NGHL) hud_showfps_colormode

• hud_fps_pos "1400 0" position for fps
• hud_fps_precision 0 numbers after . max 4
• hud_fps_yellowflor 21 the threshold after which fps will be displayed in red
• hud_fps_greenflor 60 the threshold after which fps will be displayed in yellow
• hud_fps_updaterate 1.0 fps refresh rate default 1.0 1 second

-Added hud sprite position changing:

• hud_ammo1_pos "x y" change position of primary ammo, default "0 0" <- disabled
• hud_ammo2_pos "x y" change position of secondary ammo, like grenades in mp5
• hud_health_pos "x y" change position of health
• hud_health_bar "1" enable\disable after health vertical bar
• hud_battery_pos "x y" change position of battery
• hud_weapon_pos "x y" change position of weapon sprite

-Added command joinlast like in rofi s client (NGHL)

Movement changes

• Added +ducktap like in OpenAG
• Added cl_autojump 1 , 0 like in OpenAG
• Added zpecial _zpecial alternative for special _special uses for bunnyhop and other script
• Support for both old and new +USE (E key) mechanics.
• Use cl_useslowdown 0 for pre HL 25 servers (instant stop)
• Use cl_useslowdown 1 for HL 25 servers

View changes

• Added cl_viewmodel_fov like in OpenAG
• Added cl_viewmodel_ofs_forward like in OpenAG
• Added cl_viewmodel_ofs_up like in OpenAG
• Added cl_viewmodel_ofs_right like in OpenAG
• Added cl_righthand like in OpenAG
• Added cl_hl2_bob weapon bob like in Half-Life 2
• Added cl_hl2_weaponlag weapon laging like in Half-Life 2
• Added cl_disable_deadcam like in AG6.6U
• Added cl_oldbob weapon bob like in pre HL25 update

👕 Forced Models

• cl_forcemodel "player nickname" "model" - Replace model by nickname.
• cl_forcemmodel "oldmodel" "newmodel" - Replace all models by model, example gordon replaced to gman.
• cl_forceenemymodel "model" — Replace all enemy models with a specific one.
• cl_forceteammodel "model" — Replace all teammates' models.

🛠️ Bug Fixes

• Fixed many crashes and bugs from the Half-Life 25th Anniversary SDK.
• Some bugs may still remain — ongoing testing is encouraged.

🎯 Custom Crosshair (like in OpenAG)

• crosshair 0 disables the default sprite crosshair
• Full support for modern crosshair customization:
  • cl_cross — Enable/disable custom crosshair
  • cl_cross_alpha — Opacity (0–255)
  • cl_cross_circle_radius — Radius of surrounding circle (0 to disable)
  • cl_cross_color "R G B" — Color of crosshair
  • cl_cross_dot_size — Center dot size (0 to disable)
  • cl_cross_dot_color — Dot color
  • cl_cross_gap — Gap size
  • cl_cross_size — Size/length of lines
  • cl_cross_thickness — Thickness of lines
  • cl_cross_outline — Outline thickness (0 to disable)
  • cl_cross_{top,bottom,left,right}_line — Per-line length customization

🏆 Scoreboard & Info

• Added OpenAG-style score display:
  • cl_scores 2 — shows top 2 players
  • cl_scores_pos "x y"
• Scoreboard now shows each player's model name
• Added cl_old_scoreboard 1 like in OpenAG
• Added unicode support in scoreboard
• Added color tags support in scoreboard
• Added chat loging hud_saytext_log_chat

🌟 Extended Sprites

• Support for larger sprites like HL25
• Use cl_sprites 320 , 640 , 1280 , 2560 to load sprites, 640 standart (requires restart game)

⚠️ Warning: If a sprite is missing at that resolution, the game may crash.

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🧪 Tested On

• Latest Steam version of Half-Life 25th Anniversary (9920)
• will work in Steam-legacy version of Half-Life (8684)

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🛠 Build Instructions

1. Open the solution (.sln) in Visual Studio 2022
2. Make sure required components (MSVC, Windows SDK) are installed
3. Set configuration to Release
4. Build the client

Or build via command line:

msbuild path\to\your\project.sln /p:Configuration=Release

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Half Life 1 SDK LICENSE

Half Life 1 SDK Copyright © Valve Corp.

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