Game overview
Base Defense
Base Defense is a cooperative and single-player modification for Half-Life, based on horde-style and RPG systems.
- Last tracked players
- 0
- All-time peak
- 4
- 24-hour change
- Unavailable
- Steam reviews
- 86.8% positive 144 reviews · via SteamSpy
Delayed observation · last tracked . Values marked unavailable are not estimated.
About this game Read the full description
Base Defense is a co-op modification for Half-Life based on horde-style and RPG systems. You're able to choose one of three classes, then join the fight against most dangerous monsters which are hunting you. Every class has its own abilities and traits. You can become a killing machine or a strong support for your teammates. In game you can get different items with magic powers: helmets, armor and trinkets. As you kill monsters you will get experience points and level ups. Difficulty of the game grows exponentially as you progress, don't forget to upgrade your stats. There are checkpoints every 10 waves, so you won't lose your character and loot.
Make your own epic character build and experience the most challenging battles!
The war between good and evil was interrupted by an alien invasion. The Demons ran back to hell and the Angels fled to heaven. Only the humans were left, surrounded by aliens. Three heroes called the Defenders send the humans back in time into another realm causing past and present to merge.
In-game events are happening after the merging of times.
Make your own epic character build and experience the most challenging battles!
Prologue
The war between good and evil was interrupted by an alien invasion. The Demons ran back to hell and the Angels fled to heaven. Only the humans were left, surrounded by aliens. Three heroes called the Defenders send the humans back in time into another realm causing past and present to merge.
In-game events are happening after the merging of times.
Media gallery 9 screenshots · 0 videos
Screenshots
And 1 more screenshots...
Player activity
Concurrent players over the last 48 hours.
Loading player history?
System requirements Windows
Windows
Minimum
Minimum:- OS *: Windows XP, 7, 8, 10
- Processor: 1.0 GHz CPU
- Memory: 256 MB RAM
- Graphics: 32 MB
- Storage: 400 MB available space
- Sound Card: Any
Recommended
Recommended:- OS *: Windows XP, 7, 8, 10
- Processor: 3.0 GHz CPU
- Memory: 1 GB RAM
- Graphics: 128 MB
- Storage: 400 MB available space
- Sound Card: Any
Game details Languages, features & support
- Publisher
- PLut
- Brazilian rating
- 16
- Steam Germany rating
- 18
- Content warning
- Blood and gore.
- Achievements
- 15
- Features
- Single-player, Multi-player, Co-op, Online Co-op, Steam Achievements, Stats
- Languages
- English*
*languages with full audio support - Website
- Official website ↗
- Support
- Support site ↗
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.
Native Steam builds
Windows: unknown
macOS: unknown
Linux: unknown
Steam Deck
unknown
Valve compatibility test
Input
Controller support: unknown
Structured language support (1)
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | Yes |
Steam store page
fresh · checked 2026-10-14
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.
Achievements measured
15
Hunter score
73.3 / 100
SteamIQHQ inference from rarity and count
Progression analysis
Achievement rarity is available, but milestone order is not defensible.
Rarest achievements
Elf
0.1%
Jack
0.1%
Artisan
0.9%
Hunter
0.9%
Atheist
1%
Difficulty distribution
Ultra rare (<1%)4
Very rare (1–5%)9
Rare (5–20%)2
Uncommon (20–50%)0
Common (50%+)0
Observed Nov 09, 2026 23:41 UTC · fresh
More analysis Activity patterns, updates & developer tools
Genre Benchmarks
Player Count
Top 44%
Activity Heatmap
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Developer Analytics
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Frequently Asked Questions
Is Base Defense free to play?
Yes, Base Defense is free to play on Steam.
What genre is Base Defense?
Base Defense is a Action, Free To Play, RPG game.
Who developed Base Defense?
Base Defense was developed by PLut and published by PLut.
What platforms does Base Defense support?
Available on Steam for Windows.
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