Defence Alliance 2
Defence Alliance 2 is a total conversion mod for Killing Floor featuring team based futuristic FPS game play. DA2 blends fast paced action with class based tactics to create an experience that is instantly enjoyable while still offering very deep gameplay.
- Release Date:12/11/2009
- Developer:Defence Alliance Team
- Publisher:Tripwire Interactive
- Last Updated:8/21/2025
- Steam App Id:35420
Defence Alliance 2
- Windows
- Mac
- Linux
Steam Charts, Stats, and Live Player Count
At the moment, Defence Alliance 2 has 2 concurrent players online and in-game. This is 50% lower than its previous all-time peak of 4 players achieved on 7/24/2024.
Defence Alliance 2 Review
Defence Alliance 2 has achieved a Steambase Player Score of 38 / 100. This score is calculated from 918 total reviews on the Steam store — giving it a Mostly Negative rating. These are split between 351 positive reviews, 567 negative reviews, and will be updated in real-time as more players leave their feedback.
Track historical reviews and overall rating trends for Defence Alliance 2 using the chart below.
About Defence Alliance 2
Defence Alliance 2 is an Action game developed by Defence Alliance Team. On 12/11/2009, it was released on the Steam Store by Tripwire Interactive.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Defence Alliance 2 supports the following features:
- Mods
- Single-player
- Co-op
- Multi-player
From the Steam community, Defence Alliance 2 has been tagged with the following user tags:
- Co-op
- Shooter
- FPS
- Mod
- Action
Media & Sceenshots
Watch the featured video for Defence Alliance 2 and see the latest screenshots from the Steam Store.
More Steam Charts
Track historical trends for Defence Alliance 2 community hub members and its growth over time. It currently has 2,823 followers in its community.
Frequently Asked Questions
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in real-time to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.
Defence Alliance 2 data has been sourced from:
- Valve Corporation. (2025, August 21). Defence Alliance 2 on Steam. Steam Store. https://store.steampowered.com/app/35420
- Valve Corporation. (2025, August 21). Defence Alliance 2. Steam Community Hub. https://steamcommunity.com/app/35420
- Defence Alliance Team. (2023, December 25). Defence Alliance 2. Defence Alliance 2. http://www.defencealliancegame.com