Season 10 Patch I (v2.10.1) for Half-Life: Cross Product Multiplayer is out now. The ~3.5 MB update adds a Sandbox gamemode and introduces cheat protection for achievements, alongside fixes across Firefight, Arcade, LMS, and Arena.

Achievements will now only unlock, and Service Record stats will only increment, when the game is running on an official map. The Service Record has also been expanded to track more detailed per-weapon stats, including shots and kills.

The achievements menu has been cleaned up as well: icons now display at full quality instead of looking blurry or pixelated, and the "100 Kills" achievement should no longer stay hidden after being earned.

Firefight kills now appear in the kill-feed and count toward the Service Record's Kill Stat. The last three enemies in a Firefight wave are marked with waypoints, and the Healer is working again. Throwable weapons also return to the player after a kill in Arcade, Instagib, and other modes.

LMS and Arena now have a per-round time limit. The patch also fixes file-streaming issues in certain gamemodes and ensures gamerules are applied properly on servers.

A new Sandbox gamemode lets players spawn entities using the ent_create command. Nivalis has received a map overview, and weapon bind controls have been reorganized into tier categories.

Audio changes include a fix for shield regeneration sounds from other players, which should make close-quarters combat less deafening. The shield-low sound has also been changed due to internal single-player campaign developments. The patch additionally fixes a rare crash on boot.

If the game is not working, the team is asking for full PC specifications and the system language to help troubleshoot the issue.

Half-Life: Cross Product Multiplayer is changing achievement progression in v2.10 after collecting player feedback since Season 10: Uplink. The 10,000-kill requirement for "The grind is REAL" will be reduced, and kill stats are moving to server-side validation—so players must launch the game connected to Steam and reach the menu by Friday, July 31, 2026 to preserve their totals. The team also recommends opening the Service Record menu to confirm the displayed kill count.

From v2.10, achievements unlock only under supported gameplay conditions. Workshop maps no longer contribute to achievement progression because they can be designed to inflate stats. Community servers running officially supported maps and gameplay settings remain eligible, and the developers stress this targets purpose-built stat farming rather than punishing players who used the old systems.

The 10,000-kill achievement was added in September 2025 during development of Season 10: Uplink, originally as an inside joke. The final requirement isn't locked yet but will likely land between 2,500 and 3,000 kills. For context, several team members reached around 4,000 kills through normal play after the game's August 2025 release. The goal is to make the achievement attainable through long-term ordinary play rather than repetitive farming.

The migration may fail for some accounts, potentially resetting a total to zero or flagging it for manual review, especially if a value appears inflated. Players affected can contact support via email or Discord with their Steam profile and a description of the problem.

Achievements remain optional extras rather than core gameplay, lead developer Sabian Roberts said, apologizing for the original requirement and promising greater care with future achievement design. The team also teased the eventual launch of its first campaign phase, Part I: Necropolis.

The 441.2 MB Season 10: Uplink update for Half-Life: Cross Product Multiplayer is available now, adding new maps, gamemodes, weapons, achievements, and a range of under-the-hood changes. A release party game night is happening tonight. Check it out here.

New maps include Ambush (Firefight), Cloaca (Capture the Flag, King of the Hill, Domination), Openfire (from the 2000 TFC Contest Winners), Mall (Firefight), Nivalis, and returning maps Crossfire and Walk from Season 9. Existing maps such as 2Fort, Blimpboom, Bounce, City, Compound, Datacore, Doublefort, and others have been overhauled, relit, or received weapon additions. Maps Ascension, Dustbowl, Rapidcore, Duff, Omen, and Forsaken have been removed.

New gamemodes include King of the Hill (team-based zone control), Firefight and Firefight Zombies (co-op against military/Xenians or zombies), Fiesta (random weapons with 2× damage, plus team variant), Arena (1v1 with Melee Arena option), Last Man Standing (solo, team, and GOAT variants), Tau Guys, Busters, Opposing Force Deathmatch, Raven SWAT, Team Half-Life Deathmatch, Noobtubes (Thumper only), Team Rocket Product, and four-team support. The Barnacles mode has been replaced by Tea Time, and Rockets is now Rocket Product.

New weapons are the Operator Light Rifle (OLR) – a 36-round burst-fire precision rifle with zoom, the Healer (Carry-on Medkit) for healing teammates, and the HX-40 Thumper grenade launcher. The OLR becomes the default in SWAT (where Shotgun, MP5, Crossbow, and Sniper Rifle are banned) and replaces the MP5 in GOAT.

Gameplay changes include a restored Half-Life Deathmatch gametype with classic view bobbing, Tau Cannon fire-rate, MP5 fire-rate, 80% armour absorption, and no speedcap. The Infinite Ammo command now has two modes: Bottomless Clip (1) and Infinite Reserve Ammo (2). In Arcade and Instagib, the Crowbar and .357 Magnum are replaced by the Knife and Desert Eagle. Season 5 versions of Arcade, Free-for-All, and Team Deathmatch remain unchanged. Free-for-All and Team Deathmatch now start players with the MP5. Players start with 10 M203 grenades in Arcade instead of 20. Domination control points grant points every 6 seconds and reset after 16. Chill mode allows weapon pickup but no damage. Other improvements include smoother crosshairs, new Desert Eagle animations, a Sniper mapcycle, spectator overviews for all maps, auto-balancing, and fixed voice chat.

Steam integration and UI add new achievements and statistics, an in-game Achievement Viewer and Service Record, a redesigned Custom Game Composer and main menu, a new VGUI2 scoreboard and chat, match start/end music, and updated hitsounds. Screenshots at match end are now Steam Screenshots.

Important notes: Linux client support is dropped as of Season 10, and software renderer mode is no longer supported. Details on the Linux change.

With the launch of Season 10: Uplink on July 24, native Linux client support for Half-Life: Cross Product Multiplayer is being discontinued. Moving forward, the Windows version running through Proton 10 is the supported method for playing on Linux-based systems.

The change does not affect dedicated servers—Linux-based server binaries remain natively supported, so existing operators can update and continue hosting without disruption. Players using SteamOS, Steam Deck, or standard Linux distributions can still play; Season 10 has been tested with Proton 10 and Steam will automatically select the correct configuration. Minor viewmodel texture glitches may occur on rare occasions.

The Open Beta has also been deactivated. Aura Tech states that while native Linux support is ending for the time being, they are open to bringing it back if future circumstances allow. For now, focusing on a single client is the most practical approach, with Proton ensuring continued playability across Linux devices.