Line of Defense
Line of Defense was 3000AD's persistent-world MMOFPS pitting two factions against each other for control of military bases across contested planets. It never exited an extended beta phase, and developer Derek Smart pulled it from Steam in 2016, continuing sales through the PlayFab platform.
Platform availability
Highlighted platforms are confirmed in MMOFinder’s current profile. Dimmed platforms have no confirmed listing.
- Status
- Historical
- Business model
- Buy-to-play (Starter Kit access via PlayFab)
- Genre
- MMOFPS
- Release
- —
- Platforms
- Windows
- Developer
- Not yet verified
- Publisher
- Not yet verified
- Profile
- Full
MMO DNA
A visual fingerprint built from MMOFinder’s current verified catalog fields—not a review score.
Both PvE missions and open PvP are recorded
Vehicle warfare and territory control favor group play
Structured missions sit alongside open-world vehicle combat
Real-time sci-fi FPS combat with vehicles is recorded
Why you might like it
- A sci-fi MMOFPS concept, appealing to players who want first-person shooter combat within a persistent online military setting rather than a lobby-based shooter.
- Its space-marine/near-future military framing may appeal to players who enjoy that specific sci-fi shooter aesthetic.
- PvE-focused play is confirmed in the current catalog record alongside PvP for a mixed-content option.
Things to consider
- This title had a troubled, prolonged development history under Zombie Studios with an original MMO version that did not reach a stable long-term live-service launch — verify current status and which version (if any) is actually playable before committing.
- Controller support is not currently recorded for this profile.
- Reliable gameplay imagery was not available during the latest media review.
Research record
- Last checked
- 2026-08-28
- Profile depth
- Full
- Source note
- Discovered in MMORPG.com / MMO game directories; deeper fields pending verification
What MMOFinder has checked
- Gameplay featuresStructured gameplay fields were source-checked for this profile.Verified
- Gameplay mediaTwo source-attributed gameplay images are recorded.Verified
- Source trail1 linked source is recorded for review.Verified
- Last reviewedCatalog fields reviewed Aug 28, 2026.Verified
Coverage measures documentation completeness—not game quality, popularity or an endorsement.
How verification worksGame details can change. MMOFinder separates verified catalog fields from information that has not yet been confirmed.
Line of Defense relationship map
Follow verified catalog signals to another world.
Connections use current MMOFinder catalog fields—not review scores or paid placement.
Line of Defense timeline
A concise timeline built only from dates and lifecycle fields recorded in MMOFinder.
- —Released
MMOFinder records Line of Defense as released in —.
- CurrentCatalog status
Historical
- 2026-08-16Research checked
Core catalog fields were reviewed for this profile.
Line of Defense screenshots & gameplay
Two verified gameplay images for a quick look at the game in action.
Source: YouTube gameplay video
Gameplay, availability and research notes
Line of Defense is cataloged by MMOFinder as a MMOFPS. Its recorded status is Historical — never reached a full public launch; left Steam in 2016 after developer disputes with the platform's review system, while the business model is listed as Buy-to-play (Starter Kit access via PlayFab). MMOFinder records its release year as —. Current platform data lists Windows. The profile keeps uncertain fields explicit so incomplete research is not presented as established game information.
Gameplay metadata currently describes combat or multiplayer structure as Real-time sci-fi FPS combat with vehicle warfare. Discovery tags on the record include Online Game, Catalog. The developer field lists Not yet verified, and the publisher field lists Not yet verified. Together these catalog fields help distinguish this title from similarly named games and provide useful inputs for MMOFinder’s filtering and comparison tools.
To keep exploring, the Similar Games section connects this profile with titles sharing genre, platform, model, or gameplay-tag signals. Players can also find an MMO with filters, browse game categories, or use MMOFinder Compare for a side-by-side view of catalog features.
If you like Line of Defense…
These alternatives share verified genre, platform, access-model or gameplay signals with Line of Defense. Connections describe catalog overlap rather than a quality ranking.
Why it connectsPlanetSideThe same mmofps classification; shared online game, catalog signals.MMOFPS · Subscription, later free-to-play
Why it connectsGlobal AgendaBoth are part of MMOFinder's catalog, though genre classifications differ (MMOFPS vs. Third-person tactical MMO shooter).Third-person tactical MMO shooter · Free-to-play
Why it connectsHellgate: LondonThe same mmofps classification; shared catalog signals.MMOFPS · Originally subscription-based with a free tierWhy it connectsMAGShared catalog signals, though genre labels differ (MMOFPS vs. Console MMOFPS).Console MMOFPS · Buy to play
Why it connectsEndless AgesShared mmofps classification signal, though genre labels differ (MMOFPS vs. MMOFPS and MMORPG Hybrid).MMOFPS and MMORPG Hybrid · Free-to-play
Player comments
Played this MMO? Share your experience, ask a question, or help other players decide if it is worth their time.
Comments are provided by FastComments. Please keep the discussion helpful and respectful.