Synergy

Released Sep 1, 2005

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Main story—

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Synergy is a Half-Life 2 Modification that enables you to play through the Half-Life 2 series and many other 3rd-party campaigns cooperatively with friends.

Themes

Game modes

Co-operative

Engines

Source

Complete release history (2)

Mac · Sep 1, 2005
Worldwide · Exact date · IGDB
PC (Microsoft Windows) · Sep 1, 2005
Worldwide · Exact date · IGDB

Catalog sources

IGDB

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Half-Life 2
Main game

1 achievements available.

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Synergy

Images

Half-Life 2

Contra: Legacy of War

Earth Defense Force: Iron Rain

Global Operations

Kill.Switch

Minimum

Narco Terror

NeoTokyo

Shadow Ops: Red Mercury

Silk Worm

The Haunted: Hells Reach

Rebel Rusher

Reviews

Synergy

Technical details

Images

Half-Life 2

Contra: Legacy of War

Earth Defense Force: Iron Rain

Global Operations

Kill.Switch

Minimum

Narco Terror

NeoTokyo

Shadow Ops: Red Mercury

Silk Worm

The Haunted: Hells Reach

Rebel Rusher

Reviews