steamiqhq
★ Watchlist
Synergy

Game overview

Synergy

Synergy Team · Oct 3, 2008

Synergy enables you to play through the Half-Life 2 series and many other singleplayer Source Mods cooperatively with friends.

Free to Play Action Co-op Mod Multiplayer
Last tracked players
76
All-time peak
150
24-hour change
Unavailable
Steam reviews
92.7% positive
5,630 reviews · via SteamSpy

Delayed observation · last tracked . Values marked unavailable are not estimated.

About this game Read the full description
Synergy is a simple Half-Life 2 Modification (Mod) that enables you to play through the Half-Life 2 series and many other 3rd-party campaigns cooperatively with friends.
Media gallery 9 screenshots · 0 videos
Synergy game capsule image

Screenshots

Synergy screenshot 1
Synergy screenshot 2
Synergy screenshot 3
Synergy screenshot 4
Synergy screenshot 5
Synergy screenshot 6
Synergy screenshot 7
Synergy screenshot 8
And 1 more screenshots...

Player activity

Concurrent players over the last 48 hours.

Loading player history?

Latest news

All news on Steam ↗
Rebel Rush 2025 Synergy 25.03 24.12.2 Update
System requirements Windows · Linux

Windows

Minimum

Minimum
OS *: Windows® 7 (32/64-bit)/Vista/XP
Processor: 1.7 GHz Processor (Requires support for SSE2)
Memory: 512MB RAM
DirectX: DirectX® 8.1
Hard Drive: 1 GB available space
Sound Card: DirectX Compatible
Network: Broadband Internet connection

Recommended

Recommended
OS *: Windows® 7 (32/64-bit)/Vista/XP
Processor:Pentium 4 processor (3.0GHz, or better) (Requires support for SSE2)
Memory: 1GB RAM
DirectX: DirectX® 9

Linux

Minimum

Minimum
OS: Ubuntu 12.04, SteamOS
Processor: 1.7 GHz Processor
Memory: 1GB RAM
Graphic Card: NVIDIA GeForce 8 or higher, ATI X1600 or higher, or Intel HD 3000 or higher
Hard Drive: 1 GB available space
Sound Card: OpenAL Compatible Sound Card
Network: Broadband Internet connection
Game details Languages, features & support
Brazilian rating
16
Steam Germany rating
18
Content warning
Synergy's content rating is virtually identical to Half-Life 2's, which includes violence throughout the game but with online play.
Achievements
1
Controller support
partial
Metacritic
82
Features
Multi-player, Co-op, Online Co-op, LAN Co-op, Cross-Platform Multiplayer, Mods, Mods (require HL2), Captions available, Steam Workshop, Partial Controller Support, Steam Cloud, Valve Anti-Cheat enabled, Includes level editor, Includes Source SDK, Family Sharing
Languages
English*, French*, Italian*, German*, Spanish - Spain*, Danish, Dutch, Korean*, Portuguese - Portugal, Russian*, Simplified Chinese*, Traditional Chinese*
*languages with full audio support
Compatibility & accessibility Steam Deck, controllers & access features

Can I Play This?

Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.

Sources fresh
Native Steam builds
Windows: unknown
macOS: unknown
Linux: unknown
Steam Deck
playable
Valve compatibility test
The on-screen keyboard may need to be opened manually.
Input
Controller support: unknown
Structured language support (12)
LanguageInterfaceFull audioSubtitles
EnglishYesYesYes
FrenchYesYesYes
ItalianYesYesYes
GermanYesYesYes
Spanish - SpainYesYesYes
DanishYesNoNo
DutchYesNoNo
KoreanYesYesYes
Portuguese - PortugalYesNoNo
RussianYesYesYes
Simplified ChineseYesYesYes
Traditional ChineseYesYesYes
Steam store page fresh · checked 2026-11-01 PCGamingWiki technical notes External link only; SteamIQHQ does not ingest PCGamingWiki content.
Achievement progress Rarity & completion patterns

Achievement Difficulty

Global unlock percentages are not exact completion or retention metrics.

Steam source
Achievements measured
1
Hunter score
70.0 / 100
SteamIQHQ inference from rarity and count
Progression analysis
Achievement rarity is available, but milestone order is not defensible.

Rarest achievements

ACH_EVENT_MAXPLAYERS 0.4%

Difficulty distribution

Ultra rare (<1%)1
Very rare (1–5%)0
Rare (5–20%)0
Uncommon (20–50%)0
Common (50%+)0
Observed Nov 08, 2026 14:14 UTC · fresh
More analysis Activity patterns, updates & developer tools

Build a competitor report

Genre Benchmarks

Player Count Top 22%

Activity Heatmap

UTC+0 (Your Timezone)
113
Peak Activity
57
Avg Activity
13
Active Hours
9%
Sample coverage
Less Active
More Active
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Sun
Sunday 0:00
73 players · 1 samples
Sunday 1:00
No samples
Sunday 2:00
No samples
Sunday 3:00
No samples
Sunday 4:00
No samples
Sunday 5:00
No samples
Sunday 6:00
No samples
Sunday 7:00
No samples
Sunday 8:00
No samples
Sunday 9:00
No samples
Sunday 10:00
No samples
Sunday 11:00
No samples
Sunday 12:00
No samples
Sunday 13:00
No samples
Sunday 14:00
96 players · 1 samples
Sunday 15:00
No samples
Sunday 16:00
No samples
Sunday 17:00
No samples
Sunday 18:00
No samples
Sunday 19:00
No samples
Sunday 20:00
No samples
Sunday 21:00
No samples
Sunday 22:00
No samples
Sunday 23:00
No samples
Mon
Monday 0:00
No samples
Monday 1:00
No samples
Monday 2:00
33 players · 1 samples
Monday 3:00
No samples
Monday 4:00
No samples
Monday 5:00
No samples
Monday 6:00
No samples
Monday 7:00
No samples
Monday 8:00
No samples
Monday 9:00
No samples
Monday 10:00
28 players · 1 samples
Monday 11:00
No samples
Monday 12:00
No samples
Monday 13:00
No samples
Monday 14:00
No samples
Monday 15:00
No samples
Monday 16:00
No samples
Monday 17:00
No samples
Monday 18:00
76 players · 1 samples
Monday 19:00
No samples
Monday 20:00
No samples
Monday 21:00
No samples
Monday 22:00
No samples
Monday 23:00
No samples
Tue
Tuesday 0:00
No samples
Tuesday 1:00
No samples
Tuesday 2:00
No samples
Tuesday 3:00
No samples
Tuesday 4:00
No samples
Tuesday 5:00
No samples
Tuesday 6:00
No samples
Tuesday 7:00
No samples
Tuesday 8:00
No samples
Tuesday 9:00
No samples
Tuesday 10:00
No samples
Tuesday 11:00
29 players · 1 samples
Tuesday 12:00
No samples
Tuesday 13:00
49 players · 1 samples
Tuesday 14:00
No samples
Tuesday 15:00
No samples
Tuesday 16:00
No samples
Tuesday 17:00
No samples
Tuesday 18:00
No samples
Tuesday 19:00
No samples
Tuesday 20:00
No samples
Tuesday 21:00
No samples
Tuesday 22:00
No samples
Tuesday 23:00
No samples
Wed 📍
Wednesday 0:00
No samples
Wednesday 1:00
No samples
Wednesday 2:00
No samples
Wednesday 3:00
No samples
Wednesday 4:00
No samples
Wednesday 5:00
29 players · 1 samples
Wednesday 6:00
No samples
Wednesday 7:00
No samples
Wednesday 8:00
No samples
Wednesday 9:00
No samples
Wednesday 10:00
No samples
Wednesday 11:00
No samples
Wednesday 12:00
No samples
Wednesday 13:00
No samples
Wednesday 14:00
60 players · 1 samples
Wednesday 15:00
No samples
Wednesday 16:00
No samples
Wednesday 17:00
No samples
Wednesday 18:00
No samples
Wednesday 19:00
No samples
Wednesday 20:00
No samples
Wednesday 21:00
No samples
Wednesday 22:00
No samples
Wednesday 23:00
No samples
Thu
Thursday 0:00
No samples
Thursday 1:00
No samples
Thursday 2:00
No samples
Thursday 3:00
No samples
Thursday 4:00
41 players · 1 samples
Thursday 5:00
No samples
Thursday 6:00
No samples
Thursday 7:00
11 players · 1 samples
Thursday 8:00
No samples
Thursday 9:00
No samples
Thursday 10:00
No samples
Thursday 11:00
No samples
Thursday 12:00
No samples
Thursday 13:00
No samples
Thursday 14:00
No samples
Thursday 15:00
No samples
Thursday 16:00
No samples
Thursday 17:00
No samples
Thursday 18:00
No samples
Thursday 19:00
No samples
Thursday 20:00
No samples
Thursday 21:00
No samples
Thursday 22:00
No samples
Thursday 23:00
No samples
Fri
Friday 0:00
No samples
Friday 1:00
No samples
Friday 2:00
No samples
Friday 3:00
No samples
Friday 4:00
No samples
Friday 5:00
No samples
Friday 6:00
No samples
Friday 7:00
No samples
Friday 8:00
No samples
Friday 9:00
No samples
Friday 10:00
No samples
Friday 11:00
No samples
Friday 12:00
No samples
Friday 13:00
No samples
Friday 14:00
No samples
Friday 15:00
No samples
Friday 16:00
No samples
Friday 17:00
113 players · 1 samples
Friday 18:00
No samples
Friday 19:00
No samples
Friday 20:00
No samples
Friday 21:00
No samples
Friday 22:00
No samples
Friday 23:00
No samples
Sat
Saturday 0:00
No samples
Saturday 1:00
No samples
Saturday 2:00
No samples
Saturday 3:00
No samples
Saturday 4:00
No samples
Saturday 5:00
No samples
Saturday 6:00
No samples
Saturday 7:00
No samples
Saturday 8:00
No samples
Saturday 9:00
No samples
Saturday 10:00
No samples
Saturday 11:00
No samples
Saturday 12:00
64 players · 1 samples
Saturday 13:00
No samples
Saturday 14:00
No samples
Saturday 15:00
68 players · 1 samples
Saturday 16:00
98 players · 1 samples
Saturday 17:00
No samples
Saturday 18:00
No samples
Saturday 19:00
No samples
Saturday 20:00
No samples
Saturday 21:00
No samples
Saturday 22:00
No samples
Saturday 23:00
No samples

Developer Analytics

Loading competitors...

Frequently Asked Questions

Is Synergy free to play?
Yes, Synergy is free to play on Steam.
What genre is Synergy?
Synergy is a Action, Free To Play game.
Who developed Synergy?
Synergy was developed by Synergy Team.
What platforms does Synergy support?
Available on Steam for Windows, Linux.

Related Games

6 tags in common
*NEW* EPIC SCUFFED BHOP SIMULATOR 2023 (POG CHAMP)
0 last tracked
5 tags in common
Here to There
0 last tracked
5 tags in common
Real Shoot
0 last tracked
4 tags in common
Ghost Member
0 last tracked
4 tags in common
! Shakabula *
0 last tracked
4 tags in common
#KILLALLZOMBIES
0 last tracked
4 tags in common
'Member the Alamo?
0 last tracked
4 tags in common
'Member the Alamo?
0 last tracked