Best Garry's Mod Server Addons in 2026

Garry's Mod is a sandbox of possibilities, and the right addons decide what your server becomes. Here are the staples — admin tools, build tools and the most popular gamemodes — for 2026, plus how to keep a heavily-addoned server running smoothly.

Garry's Mod is really a platform: the gamemode and addons you pick decide whether your server is a roleplay city, a social-deduction lobby or an engineer's sandbox. Below is the toolkit most successful servers share — admin, a gamemode, depth addons and content delivery — plus how to keep a heavily-addoned server fast.

ULX + ULib — admin essentials

The classic admin suite: bans, kicks, gags, group permissions and a clean admin menu. ULX (on top of ULib) is the first thing most server owners install to actually moderate their server. Pair it with a permissions addon so your moderators get exactly the powers you intend and nothing more.

Pick a gamemode

The gamemode defines everything else. These are the four that draw the most players in 2026:

Setting up your first DarkRP server

DarkRP remains the most-searched Garry's Mod gamemode by far. If you're starting from scratch, our how to set up a GMod DarkRP server guide covers the base install before you start layering on jobs and addons.

Wiremod + ACF — for builders

Wiremod adds programmable contraptions (logic, sensors, screens); ACF adds realistic armour and ballistics. On build and sandbox servers, these two are what keep engineers engaged for hundreds of hours.

PAC3 — player customisation

PAC3 lets players build custom outfits and accessories on their models — huge on RP servers for immersion and character identity.

Content & quality of life

• CS:S content / map content packs — fix missing textures (the purple-and-black checkerboard).
• VManip / enhanced animations — nicer first-person interactions.
• Discord integration — link your server and community.
• A FastDL setup — fast addon downloads on join.

Workshop collections and FastDL

Two systems get addons to your players. A Steam Workshop collection tells the client which addons to subscribe to; a FastDL host serves the actual files over HTTP so joining doesn't mean a ten-minute in-game download at Source's slow default speed. Set up both — Workshop for the list, FastDL for the delivery. If addons or textures aren't loading for players, see our GMod addon fix.

Keeping a heavily-addoned server performing well

Garry's Mod runs on Valve's Source engine, whose game tick is single-threaded — so raw core count matters far less than high per-core CPU clock. Lua-heavy addons (Wiremod contraptions, DarkRP job scripts, PAC3 outfits) all add work to that one tick. Keep it fast:

1. Run on a high-clock CPU — GMod cares about GHz, not core count.
2. Trim unused addons and keep your Workshop collection tidy; every subscribed addon is parsed on join.
3. Watch server tick rate as the list grows — a server that lags under fifteen players almost always has an addon conflict, not a hardware limit.
4. Disable or replace any addon that spikes the tick; test additions on a private copy before pushing to the live server.

Basic exploit and admin protection

A public Garry's Mod server, especially DarkRP, attracts exploiters probing for money or item duplication bugs. Keep ULX permissions tight, update addons regularly, and see our game server security checklist for the broader steps every public server should take.

ULX to moderate, a gamemode to define the server, Wiremod/PAC3 for depth, and CS:S content + FastDL so everything loads cleanly. That's a complete GMod server.

GMod servers want a fast CPU and a good FastDL setup. Our Garry's Mod hosting supports Workshop collections and FastDL out of the box.

Garry's Mod is a trademark of Facepunch Studios, built on Valve's Source engine. All addon and gamemode names are the property of their respective authors. ESAGAMES is an independent hosting provider, not affiliated with or endorsed by Facepunch, Valve or any addon developer. Download addons from their official sources.