Best Includes Source SDK Games on Steam
Explore Includes Source SDK Games on Steam using recorded player activity, community reviews, trend momentum, and release recency.
Total Games
125
Ranking Method
Composite Score
Data Source
Recorded Steam observations
Showing 1–50 of 100 ranked games
| # | Game | Players | Reviews | Price | Score | Trend |
|---|---|---|---|---|---|---|
| 1 |
Left 4 Dead 2
|
21,551 | 98% | $9.99 | 0.7 | +24285.5 |
| 2 |
Garry's Mod
|
16,418 | 97% | $9.99 | 0.7 | +14801.2 |
| 3 |
Counter-Strike: Source
|
2,064 | 96% | $9.99 | 0.6 | +2287.6 |
| 4 |
Half-Life 2
|
989 | 98% | $1.99 | 0.6 | +1178.4 |
| 5 |
Black Mesa
|
376 | 95% | $11.99 | 0.6 | +373.0 |
| 6 |
Portal
|
641 | 98% | $1.99 | 0.6 | +679.4 |
| 7 |
Left 4 Dead
|
694 | 96% | $1.99 | 0.6 | +816.2 |
| 8 |
Holdfast: Nations At War
|
179 | 90% | $9.99 | 0.5 | +176.8 |
| 9 |
No More Room in Hell
|
329 | 90% | — | 0.5 | +345.0 |
| 10 |
Day of Defeat: Source
|
230 | 92% | $1.99 | 0.5 | +230.1 |
| 11 |
Alien Swarm: Reactive Drop
|
73 | 95% | — | 0.5 | +66.0 |
| 12 |
Half-Life 2: Deathmatch
|
102 | 91% | — | 0.5 | +107.5 |
| 13 |
Fistful of Frags
|
50 | 91% | — | 0.4 | +47.8 |
| 14 |
Synergy
|
42 | 93% | — | 0.4 | +42.5 |
| 15 |
悟空大闹考瑞亚
|
0 | 100% | $8.99 | 0.4 | +0.0 |
| 16 |
HIGhSCORE
|
0 | 100% | $3.99 | 0.4 | +0.0 |
| 17 |
Pool Nation FX
|
26 | 72% | — | 0.4 | +26.4 |
| 18 |
Pirates Vikings & Knights II
|
8 | 88% | — | 0.3 | +0.0 |
| 19 |
Zombie Panic! Source
|
10 | 85% | — | 0.3 | +0.0 |
| 20 |
BrainBread 2
|
2 | 73% | — | 0.3 | +0.0 |
| 21 |
Double Action: Boogaloo
|
2 | 93% | — | 0.3 | +0.0 |
| 22 |
Day of Infamy
|
5 | 82% | $14.99 | 0.3 | +0.0 |
| 23 |
KAYF-LIFE: Complete Edition
|
77 | 0% | — | 0.3 | +132.9 |
| 24 |
Aperture Tag: The Paint Gun Testing Initiative
|
8 | 77% | $0.99 | 0.3 | +0.0 |
| 25 |
Mac Portal
|
0 | 98% | $9.99 | 0.3 | +0.0 |
| 26 |
Dwelvers
|
1 | 64% | $14.99 | 0.3 | +0.0 |
| 27 |
Estranged: Act I
|
0 | 94% | — | 0.3 | +0.0 |
| 28 |
Fortress Forever
|
0 | 90% | — | 0.3 | +0.0 |
| 29 |
Empires
|
0 | 87% | — | 0.3 | +0.0 |
| 30 |
From Earth
|
1 | 78% | — | 0.3 | +0.0 |
| 31 |
FIREFIGHT RELOADED
|
0 | 85% | — | 0.3 | +0.0 |
| 32 |
Thinking with Time Machine
|
0 | 84% | — | 0.3 | +0.0 |
| 33 |
Portal: Revolution
|
43 | 0% | — | 0.2 | +43.5 |
| 34 |
Team Fortress 2 Classified
|
93 | 0% | — | 0.2 | +91.5 |
| 35 |
Star Crusade CCG
|
0 | 80% | — | 0.2 | +0.0 |
| 36 |
Rise of the Triad
|
3 | 66% | $1.49 | 0.2 | +0.0 |
| 37 |
Portal: Alive & Kicking
|
16 | 0% | — | 0.2 | +23.2 |
| 38 |
Portal 2: Community Edition
|
16 | 0% | — | 0.2 | +17.3 |
| 39 |
Entropy : Zero 2
|
38 | 0% | — | 0.2 | +41.5 |
| 40 |
Wilson Chronicles - Beta
|
0 | 74% | — | 0.2 | +0.0 |
| 41 |
Blade Symphony
|
0 | 66% | — | 0.2 | +0.0 |
| 42 |
Portal with RTX
|
16 | 0% | — | 0.2 | +14.7 |
| 43 |
Sunrise survival
|
0 | 48% | — | 0.2 | +0.0 |
| 44 |
Half-Life 2 RTX
|
7 | 0% | — | 0.2 | +0.0 |
| 45 |
Retaliation: Enemy Mine
|
0 | 50% | $4.99 | 0.1 | +0.0 |
| 46 |
Team Fortress 2: Gold Rush
|
2 | 0% | — | 0.1 | +0.0 |
| 47 |
Fast Detect
|
0 | 41% | — | 0.1 | +0.0 |
| 48 |
Snowdrop Escape
|
9 | 0% | — | 0.1 | +0.0 |
| 49 |
Evacuation
|
2 | 0% | — | 0.1 | +0.0 |
| 50 |
SOS Recordings
|
0 | 0% | — | 0.1 | +0.0 |
Frequently Asked Questions
How are Includes Source SDK Games ranked?
Games are ranked using recorded player activity, community review scores, trend momentum, and release recency. Up to 100 ranked games are shown from the matching catalog.
How is the composite score calculated?
The score combines normalized player activity (40%), positive review share (30%), trend momentum (20%), and release recency (10%). It is a discovery aid, not an editorial review.
How fresh is the ranking data?
The ranking refresh time is shown on this page. Individual game observations may be older and are collected at different times. Open a game for its source details and observation times.
How these Steam games are ranked
The default score combines recorded player activity (40%), positive review share (30%), trend momentum (20%), and release recency (10%). Steam community tags and feature categories determine membership.
This list shows up to 100 ranked games from 125 matching catalog entries. Player counts and USD prices are recorded observations, not guaranteed live values. Open a game for its source details and observation times.
Ranking refreshed . Individual observations may be older.