Sandpit

This mod for Goldsource has been released! Download it now.

Sandpit is a sandbox mod for the original Half-Life.

Features

Spawn menu - a selection of Half-Life monsters can be spawned.
Custom HUD - the HUD can be changed to any RGB colour.
Deathmatch bot
Support for a variety of entities from GoldSource engine games.
Ability to add glowshells to spawned models
Monster spawn menu
Model spawn menu
Tool menu
Deathmatch, King of the Hill and Time to Choose multiplayer gamemodes
Support for a few entities from 1st party GoldSource engine games (except 007 Nightfire)
Detail textures for Half-Life deathmatch maps