Mod
Free to play App 270370
Lambda Wars
Vortal Storm · released Dec 5, 2014
Lambda Wars is a free standalone multiplayer Source Engine modification set in the Half-Life 2 universe that brings the war between mankind and their brutal Combine overlords to a traditional real-time strategy (RTS) setting. Lead the uprising as a commander of the Resistance or crush the rebellion as an overlord of the Combine, with both factions featuring a full host of units, abilities, buildings, research and defenses. Lambda Wars features full-fledged RTS gameplay and a robust RTS interface and is focused on multiplayer but strategic AI opponents and dedicated singleplayer missions are also included.
Price
Free
US store
Reviews
92%
6,939 · Very Positive
Playing now
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not sampled yet
24h peak
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all-time seen —
Followers
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Steam community hub
Owners (est.)
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from review count
YouTube activity
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videos · 30 d—
creators—
views · 1 yTwitch activity
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avg viewers · 30 d—
hours watched · 30 d—
streamers · 30 dProduct info
from Steam's PICS · read 2d ago- Change number
- 40,822,083 · seen 2d ago
- Public build
- 20,715,077 · Nov 9, 2025 (1y ago)
- Operating systems
- windows
- Architecture
- —
- Install size
- 5.6 GB · 2.7 GB download
- Install folder
Lambda Wars- Controller support
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- Metacritic
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- Homepage
- —
- Release state
- released
- Community
- hub · stats
Steam Deck
PlayableTested Jul 6, 2022 on build 7,179,292
- !Default controller config not fully functional
- !Controller glyphs do not match deck device
- !Text input does not automatically invokes keyboard
- !Interface text is not legible
- ✓Default configuration is performant
Branches · 2
every build Steam serves for this app| Branch | Build | Updated | Description |
|---|---|---|---|
| public | 20,715,077 | Nov 9, 2025 · 1y ago | |
| dev | 20,715,077 | Nov 7, 2025 · 1y ago | Development - Pre-release |
Build history
every build id we have seen on a branch (history starts with our first read)| Build | Branch | Released | First seen |
|---|---|---|---|
| 20,715,077 | public | Nov 9, 2025 15:35 | 4d ago |
| 20,715,077 | dev | Nov 7, 2025 19:04 | 4d ago |
Depots · 4
content of the public branchLaunch options · 1
| Executable | OS | Description |
|---|---|---|
lambdawars.exe-game lambdawars |
windows | Launch |
Languages · 13
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| Czech | ✓ | — | — |
| Spanish - Latin America | ✓ | — | — |
| French | ✓ | — | — |
| German | ✓ | — | — |
| English | ✓ | ✓ | — |
| Korean | ✓ | — | — |
| Russian | ✓ | — | — |
| Spanish | ✓ | — | — |
| Romanian | ✓ | — | — |
| Portuguese - Brazil | ✓ | — | — |
| Hungarian | ✓ | — | — |
| Ukrainian | ✓ | — | — |
| Portuguese | ✓ | — | — |
Packages · 0
all packagesNo packages recorded yet.
Bundles · 0
all bundlesNot part of any bundle we know.
Change numbers
all changes#40,822,083 · 2d ago
Updates · patch notes
Steam announcements tagged as patch notes, linked to the public build they followed
No patch notes seen yet for this game.