Half-Life Deathmatch: Source: Complete Guide

This guide covers the arsenal, map knowledge, movement, and settings you need to hold your own in Valve's Source remake of classic Half-Life deathmatch, plus how to find a game or host one in 2026.

Researched September 2026 — current as of the 24 August 2026 update (security and stability, Linux custom-map fix) on top of the February 2025 64-bit overhaul. Live games change; check the linked sources if something differs.

Quick Start

This is arena deathmatch. No classes, no loadouts. Everyone spawns with a crowbar and a 9mm pistol, and everything else comes from map pickups. Knowing where the pickups are counts for more than aim.
Get to a power weapon right after spawning. The Tau Cannon, crossbow, RPG, shotgun, and MP5 decide most fights. The pistol is only for finishing off weakened enemies.
Health and armor chargers are wall-mounted. Hold Use on them to refill. Learn where they are on each map.
Explosives are everywhere. Hand grenades, satchel charges, tripmines, MP5 grenades, and RPG rockets. Check doorways for tripmine lasers.
The long jump module (found on some maps) lets you do a big leap with crouch + jump while moving. It's the fastest movement in the game.
The game got a real modernization in February 2025. 64-bit binaries, a borderless window option, UI scaling, native resolution at launch, Steam Networking, and client-side prediction fixes. Old complaints about "jank" and rubber-banding are mostly fixed.
Servers are mostly community-run. Use the server browser and sort by players. Evenings in EU and NA are the busiest.
Remember the 2006 differences. The .357 has no zoom in HLDM:S, and the classic map Gasworks isn't included.

The Arsenal

Slot	Weapon	Primary	Secondary	Use it for
1	Crowbar	Swing	—	Emergency melee, breaking crates
2	9mm Pistol (Glock)	Accurate semi-auto	Fast inaccurate fire	Finishing weakened enemies. 17-round magazine, matching the original.
2	.357 Magnum	Heavy single shots	— (no zoom in HLDM:S)	Mid-range headshots
3	MP5	Automatic fire	Contact grenade	All-rounder. The grenades clear corridors.
3	Shotgun	Single blast	Double blast	Close range. The double blast deals huge damage but reloads slowly.
3	Crossbow	Bolt	Zoom	Long-range picks. Lead your target when unzoomed.
4	RPG	Laser-guided rocket	Toggle laser	Area denial, finishing, anti-camp
4	Tau Cannon (Gauss)	Quick shot	Charged blast with big recoil	Huge damage, shoots through thin walls, gives you a recoil boost
4	Gluon Gun (Egon)	Continuous beam	—	Melts anyone in range. Burns ammo fast.
4	Hivehand	Homing hornets	Rapid hornets	Self-recharging ammo, harassment
5	Hand Grenade	Throw	—	Cooking and bouncing around corners
5	Satchel Charge	Throw	Detonate	Traps at chargers and pickups
5	Tripmine	Place on wall	—	Doorway and stair traps
5	Snarks	Release	—	Small biting creatures that chase whoever is nearest, including you

Weapon priorities by situation

Close quarters: Shotgun double blast, then the Gluon Gun, then MP5 grenades.
Mid range: MP5, .357, Tau Cannon quick shots.
Long range: Crossbow, .357, RPG with the laser guiding the rocket around cover.
Movement tech: A Tau Cannon charged shot fired at your feet or behind you launches you across the map (the classic "gauss jump"). It costs health and ammo, so practice it in an empty server.

Maps

HLDM:S includes 11 of the classic Half-Life deathmatch maps, rebuilt with Source lighting and physics.

Map	What it's about	Key tip
Boot Camp	Big mixed indoor/outdoor map	Hold the high ground near the power weapons
Bounce	Jump pads over a pit	Air-control fights. Knock people off with explosives.
Crossfire	Two bases and an open courtyard	The bunker has a button that triggers an airstrike on the yard, so hide inside when it fires
Datacore	Tight industrial corridors	Shotgun and MP5 grenades dominate
Frenzy	Small, chaotic	Constant spawns. Get armor fast.
Lambda Bunker	Lab bunker complex	Learn the charger and armor loops
Rapidcore	Reactor core with hazards	Watch your step around the core
Snark Pit	A house with a snark pit	Stay aware of the snarks. The pit is a death trap.
Stalkyard	Open yard and warehouses	Crossbow and .357 lanes
Subtransit	Train tunnels	Trains kill instantly, so listen for them
Undertow	Water-heavy map	Swimming is slow. Fight from dry routes.

Map control loop: spawn → closest armor or health → nearest power weapon → a route that passes your second weapon and a charger. Repeat. Good players time pickup respawns instead of wandering.

Movement

Crouch-jumping gets you onto ledges you can't reach with a normal jump. Press crouch at the peak of the jump.
Long jump module: while moving forward, crouch then jump for a long horizontal leap. It makes big maps small.
Strafe while falling to control your air path. Movement in HLDM:S feels different from the original GoldSrc game, so relearn your jump distances.
Ladders and water are slow and exposed. Don't fight from them.
Gauss jumping (see above) is the high-skill movement trick.

Settings and Performance

After the February 2025 update, the game launches at native resolution and supports a borderless window and UI scaling for high-resolution screens.

Recommended console and options setup (open the console with ~ after enabling it under Options → Keyboard → Advanced):

Command	Suggested value	Why
`fps_max`	Your refresh rate or higher (e.g. 240)	Smoother input
`net_graph`	1	Shows FPS, ping, and loss
`rate`	The highest value your build accepts (type `rate` in the console to see the current value; servers can cap it)	Modern-connection bandwidth
`cl_interp_ratio`	1 or 2	Lower is more responsive, higher is more stable on bad connections
`m_rawinput`	1 (if available)	Bypasses Windows mouse acceleration

Turn off mouse acceleration in Options → Mouse, and use a sensitivity where a full mouse swipe turns you roughly 180 degrees.

Finding and Hosting Games

Server browser: Find Servers → Internet tab. Filter out empty servers and sort by ping.
Listen server: Create Server from the main menu. Since 2025 the default server name includes your player name, and Steam Networking support makes it easier to play with friends.
Dedicated servers are available through SteamCMD as the HLDM:S dedicated server tool. Useful commands: mp_timelimit, mp_fraglimit, mp_teamplay (team deathmatch), sv_password, and changelevel [mapname].
Custom maps: Community maps are downloaded from the server you join. The August 2026 update fixed custom-map assets failing to load on Linux.
Store status: Valve unlisted Half-Life: Source from the Steam store in November 2023, but HLDM:S is still sold separately. It's also included in some Valve bundles.

Common Mistakes to Avoid

Fighting with the pistol. Get to a real weapon in the first 10 seconds after spawning.
Running through doorways without looking. Tripmine lasers are visible. Look for them.
Releasing snarks in a small room. They go for the nearest target, and that can be you.
Standing on the Crossfire yard when the airstrike is triggered.
Firing the double shotgun blast at range. It spreads out, and the reload is slow.
Gauss-jumping with low health. The self-damage can kill you.

Advanced Tips

Time the power weapons. Note when you take the Tau Cannon or RPG and be back when it respawns. This beats raw aim over a full match.
Satchel on the charger. Drop a satchel next to a health charger, then detonate it when someone uses the charger.
Shoot Tau through walls. Charged shots penetrate thin walls. It's a good way to punish campers.
Guide the RPG around corners. Keep the laser on and steer the rocket into people hiding behind cover.
Cook grenades to deny escape routes. Bounce them off walls into rooms.
Hivehand ammo recharges. It's good to carry for harassment when you're low on everything else.

FAQ

Is Half-Life Deathmatch: Source still playable online? Yes. There are community servers, and the 2025 update added Steam Networking, which makes playing with friends easier. Populations are small, so evenings and weekends are best.

What's the difference from the original HLDM? It uses the Source engine with its physics and lighting, and the maps have balance tweaks. The .357 has no zoom, and Gasworks isn't included.

Does it support widescreen and high refresh rates? Yes. Since February 2025 it launches at native resolution, supports borderless windowed mode, has UI scaling, and runs 64-bit.

How do I host a server? Use Create Server for a quick listen server, or SteamCMD for a dedicated one.

Are there bots? There's no official bot support. Use community servers or mods.

Is it on Mac and Linux? Linux, and historically macOS, support were added in the 2013 SteamPipe update. Linux got another fix in August 2026.