phase zero
Phase Zero establishes Underground's first structured gameplay framework.
This release introduces the core progression loop, infrastructure upgrades, and foundational systems required for long-term development. While refinement continues, the following systems are functionally implemented and undergoing controlled testing.
Infrastructure & Stability
- Migration to a dedicated high-performance server environment
- Improved system state handling and menu reliability
- Reduced edge-case conflicts across core gameplay systems
- Backend structure prepared for future scaling
Core Systems
- Player Safehouse (functional, undergoing refinement)
- Dealership system with vehicle browsing and test driving
- Structured Tuning Shop with purchase-based upgrades
- PA Menu system for in-world system access
- Player identity systems and UI customization framework
Progression Framework
- Purchase-based vehicle ownership
- Earned currency through time attacks and competitive racing
- Level-based milestone rewards
- Economy replacing free-access sandbox structure
Systems in Active Development
- Multiplayer racing systems
- Level balance adjustments
- Map traffic refinement
- Additional world expansion
Testing Model
The current open server will remain available as a sandbox environment.
Phase Zero introduces a structured server intended for focused testing of progression, economy, and competitive systems.
Overview
Underground is a custom FiveM racing experience shaped by early-2000s street racing culture.
Modern and classic vehicles coexist within a progression-driven framework built around choice, identity, and competitive racing.
Gameplay
Underground is built around structured progression and competitive racing.
Vehicles are not disposable assets. Each build reflects time, tuning, and deliberate investment within a controlled economy.
Customization extends beyond parts. Interface elements, colors, patterns, gauges, audio systems, and visual accents can be configured, unlocked, or acquired through progression.
Handling
Underground's handling model is built around deliberate difficulty.
Cars require control, patience, and mechanical awareness. Grip is finite. Inputs matter. Mistakes cost time.
Progression is not just financial - it is skill-based. As drivers adapt, lap times fall. Speed is earned through mastery, not handed out through simplicity.
The system rewards control over aggression, consistency over chaos.
Project Status
Public Playtest Announcement: the server is planned to open in the first week of March 2026 in a simplified playtest state so everyone can experience the current build and help shape what comes next.
Expect 30+ cars with unique handling and audio, deep visual customization, Time Attack tools, and 100+ km of roads in a sandbox-focused environment.
Core systems like economy/progression, structured racing, safehouse flow, and social features are still in active development. Watch the announcement video and keep feedback coming as we move toward full release.
development
Short, scannable updates as the site and project evolve.
Development
Development Update
credits
Underground is built on the foundation of a passionate and highly skilled creator community.
This project would not be possible without the tools, assets, and craftsmanship contributed by developers, artists, and modders across the GTA V and FiveM ecosystem.
Asset & Resource Providers
Paint Color Reference Library
Our in-game paint options are informed by the comprehensive reference library provided by GTA Colors. Their documentation of factory and custom color codes helps ensure accuracy and consistency across our customization systems.
Audio Asset Library
Select sound effects and audio elements are sourced from Pixabay’s royalty-free asset library. Their platform provides high-quality media resources that support immersive gameplay experiences.
Vehicle Mod Credits
Underground is built with the support of the extraordinarily talented GTA V / FiveM modding community. We extend our sincere appreciation to the creators and teams whose vehicle models, modifications, and supporting assets contribute directly to the experience.
Primary Contributors & Teams
- Rockstar Games - Official GTA V base content and vehicle assets (rockstargames.com)
- Boywond / Vanillaworks Team & Community
- Gabz
- GOM
- Smukkeunger
- harithd
- johndoe968
- WibFlip
- MMTGarage
- 13Stewartc
- deadman23
- FilipJDM
- Artistraaw / artistraaw
- Carrythxd
- Jerkov
- TGI_J
- Algonquin Hood
- IGNO
- Ydrop / Ydro
- Vanillaworks Community
- Bob322
- BenMcCall
- Engetsuka
- MaxBaxman (M4K3)
- xXGARRAPPAXx
- jacklonergan
- legacy_dmc
- IlayArye
- MGgames100
- NorthwindJME
- Dani02
- TG_Stig
- drlq99
- LamboFreak
- RezaM39
- muzazipr
- WildBrick142
- Voit Turyv
- Eduarson26
- HeliosAxitro
- Sirocc
- Paddy Productions
- Murcielago
- T3rmina1Nerd_
- alerobyfeb
- Rodger Dodger
- Dayashii
- Felis
- K1LLFANTASY
- Shal.Custom
- Dani02
- Suzuka (a.k.a. a_asdf556)
Additional Collaborators
We acknowledge and respect the time, skill, and creative effort invested by every contributor listed above, as well as other community members whose work continues to shape and strengthen the platform.
If you are a creator and would like a direct link to your profile, portfolio, or storefront included in this section, we welcome your message and will update this page accordingly.
Rights & Attribution Inquiries
Underground is committed to proper attribution and responsible use of third-party work.
For any questions regarding credited materials, usage rights, or additional attributions, please contact the development team directly at:
We will respond promptly and ensure that all creator contributions are represented accurately and respectfully.
