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Add On — Synergy Mods

The best add on mods for Synergy — ranked by community endorsements. 53+ free mods.

53+ mods found · Sorted by endorsements

🏆 All Mods🏅 Top 25🆕 Newest📈 Trending🧩 Compatible🔧 Install🎲 Surprise Me

Go Fuck Yourself Gman Intro

— 011,030 dl

The Very Scary Very Late Halloween Map Pack

— 06,857 dl

Boilingpoint Depository Heist

— 04,627 dl

js_coop map pack

— 03,482 dl

Black Mesa & Improved HL1 Xen Mod Support

— 03,419 dl

dr_puzzle_mario_final

— 03,010 dl

syn_stadium_rm

— 02,955 dl

The Stanley Parable Map

— 02,754 dl

Player Model Pack Part 3

— 02,666 dl

Brush-Upgraded Synergy Vehicles

— 01,963 dl

Nightmare House (original)

— 01,176 dl

Portal : First Slice [CO-OP]

— 01,043 dl

Forgotten Powers-island

— 01,017 dl

syn_mountaineer

— 0945 dl

THAT

— 0802 dl

syn_fireteam (2 maps)

— 0801 dl

js_coop_quest

— 0792 dl

Rebel Holdout 2 [Wave Survival Gamemode]

— 0745 dl

syn_combineinvasion_icereactor

— 0717 dl

Multi-Skybox Map Demo

— 0630 dl

Prospekt — Bonus Map

— 0548 dl

Rebel Holdout - Bluevelvet [Wave Survival Gamemode]

— 0546 dl

Rebel Holdout 3 [Wave Survival Gamemode]

— 0523 dl

syn_newsurf 2.0

— 0522 dl

Forgotten Powers-escape

— 0517 dl

syn_desert_assault

— 0475 dl

Life-Half 2

— 0463 dl

Found On The Tape: ARG Maps (Synergy Version)

— 0440 dl

syn_temple

— 0439 dl

Gnome Replaced With Fluttershy

— 0433 dl

Rebel Holdout - SOS [Zombie Survival Gamemode]

— 0349 dl

surf_crzyfrog_reloaded

— 0339 dl

Doom 2 Source Map 01

— 0288 dl

Synergy EP1-EP2-Lost Coast subtitles fix

— 0277 dl

surf_fruits

— 0265 dl

Forgotten Powers-surface beta release

— 0251 dl

syn_country_train

— 0217 dl

Zs Town (NEW)

— 0180 dl

zs_town map simple (OLD)

— 0164 dl

Strange Map v.1.0

— 0141 dl

Deathrun Fun

— 0124 dl

js_puzzle_eleven_final

— 0103 dl

syn_aku-aku's crazy world

— 098 dl

Vehicle Challenge

— 075 dl

cg_puzzle_park_v05

— 058 dl

js_build_puzzlexmas_ob

— 057 dl

Test Map

— 047 dl

level01_11

— 047 dl

Garry's Mod Maps

— 046 dl

Cow Cannon

— 041 dl

cs_apps

— 028 dl

syn_quickpuzzle

— 024 dl

my hud

— 016 dl
📋 Browse All 1,127 Synergy Mods 🏆 Top 25 Synergy Mods