Half-Life: Cross Product Multiplayer has launched!
After years of work, we're excited to announce that Cross Product Multiplayer, our very first release on Steam, is now LIVE! This is a huge milestone for our team, and we can't wait to finally share it with all of you.
What is Cross Product Multiplayer?
Since 2020, Half-Life: Cross Product has been our passion project. Alongside its story-driven campaign which is still in the works, we built a full multiplayer experience - and today, that's what you're getting.
Cross Product Multiplayer is more than just HLDM - it's an overhaul with new systems, ways to play, and seasonal content updates that keep the battlefield fresh every year.
Why play Cross Product Multiplayer?
If you've ever wished HLDM had more variety and Quality-of-Life, or you enjoyed arena games and mods of the era like Unreal Tournament, Quake 3, and Adrenaline Gamer, this is for you. Some highlights include but not limited to:
Adaptive gamemode system with CTF support across almost every map.
Social & competitive gamemodes such as Snipers, Arcade, SWAT, GOAT, CTF, Domination, One In the Chamber, and more to come in Season 10.
Gameplay enhancements - shield regeneration, soundtrack, and modern viewbobbing - some major, some subtle things, all from the internal developments made to the campaign.
Refined classic maps such as Crossfire & Datacore - with in-universe lore adaptations, quality enhancements, details, smoother lighting, and more.
Steam Workshop support for maps & other addons like sounds, music, and playermodels.
Aura SDK Toolkit (Harbinger, Spectra, Tessera, Helix, Sapien) for creators.
Open-source community-driven codebase (Aura)
Seasonal updates - we're currently in Season 9, and Season 10 is in the works.
Native Linux support
Community & Servers
You can host your own dedicated server using our official Steam tools, or simply jump into a Custom Game with friends. Thanks to built-in Steam Networking, no port forwarding or network tinkering is required.
Want to get involved? Join the growing Phoenix Project Community:
What's next?
Season 10 is coming in 2025, bringing new maps, new modes, and new surprises. Until then, we'll be running events, hosting community matches, and expanding the Workshop scene. Ourselves and the Closed Beta Testers have pre-populated the Workshop to help you get started.
Thank you for supporting Cross Product Multiplayer. This project has only been possible thanks to years of dedication, self-discipline, community feedback, and today marks the start of something much bigger.
We'll see you on the battlefield.