Counter-Strike 2 Update Fixes Grenade Clipping and Expands Map Scripting

Valve also updated Shelter, cleaned up several Cache issues, and added new hooks for bombs, grenades, weapons, and defusers.

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Counter-Strike 2's new C4 patch trims damage and tidies up a few bugs

Valve published a new Counter-Strike 2 update on August 3, 2026. The patch fixes a grenade collision issue that allowed grenades to pass through level geometry, refreshes parts of Cache and Shelter, and adds a large group of scripting functions for map creators.

The Cache changes cover map gaps, collision problems, flickering assets, and a boost position in Outside A. Shelter has also been brought up to its latest Community Workshop version, with the related Update Notes available through Steam.

Map scripting receives the largest batch of additions. Creators can now work with new events and functions tied to player traces, weapon pickups and drops, grenade projectiles, bomb explosions, planted C4 states, and defuser information. The update also fixes script reload behavior for Instance.RegisterCheatCommand and deprecates bounces from the Instance.OnGrenadeBounce event.

The complete changes appear in Valve’s Steam announcement.

Counter-Strike 2 Update Patch Notes

This update addresses grenade clipping, several Cache issues, and the latest Shelter Workshop build. It also gives map creators more control over grenade, weapon, and bomb-related scripting.

[ GAMEPLAY ]

Fixed a case where grenades could be thrown through level geometry

[ MAPS ]

Cache

Fixed various gaps in map
Fixed collision in various spots across map
Fixed flickering on some assets
Removed boost spot in Outside A

Shelter

Updated to the latest version from the Community Workshop (Update Notes)

[ MAP SCRIPTING ]

Added Instance.TracePlayer
Added Instance.OnWeaponPickup
Added Instance.OnBombExplode
Added Instance.SpawnGrenadeProjectile
Added dropper to Instance.OnWeaponDrop event
Added hitEntity to Instance.OnGrenadeBounce event
Added normal to Instance.OnGrenadeBounce event
Added CSGrenadeProjectileBase.GetGrenadeType
Added CSGrenadeProjectileBase.GetThrower
Added CSGrenadeProjectileBase.Detonate
Added CSPlantedC4.IsBombsiteA
Added CSPlantedC4.IsBombsiteB
Added CSPlantedC4.GetPlanter
Added CSPlantedC4.GetDefuser
Added CSPlantedC4.IsActive
Added CSPlantedC4.IsExploded
Added CSPlantedC4.IsDefused
Added CSPlantedC4.GetPlantTime
Added CSPlantedC4.GetExplodeTime
Added CSPlantedC4.GetDefuseStartTime
Added CSPlantedC4.GetDefuseFinishTime
Added CSPlayerPawn.HasDefuser
Added CSPlayerPawn.SetHasDefuser
Added CSGrenadeType enum
Fixed a bug where Instance.RegisterCheatCommand would not work on script reload.
Deprecated bounces from Instance.OnGrenadeBounce event.

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Counter-Strike 2 is a free-to-play multiplayer tactical first-person shooter developed and published by Valve. Released in September 2023, it is the fifth main entry in the Counter-Strike series and serves as a direct replacement for Counter-Strike: Global Offensive on Steam. Two teams, Terrorists and Counter-Terrorists, compete in objective-based rounds across modes such as bomb defusal and hostage rescue. Built on the Source 2 engine, the game introduced volumetric smoke physics, revised weapon handling, and a new sub-tick server architecture. It inherited all cosmetic items from its predecessor and features both a map-specific Competitive mode and a numerically ranked Premier mode.