Knights

Knights is a free PvP multiplayer game in which players must explore a deadly dungeon while pursuing a given quest.
For example, in the Quest for Gems, you must collect three gems and carry them back to your starting point. Sounds simple? The catch is that the dungeon only contains enough gems for one player to win - so you will likely have to fight your opponents and take their stuff!
Other quests include racing to the dungeon exit, fighting a duel to the death against the enemy knights, or destroying an ancient Book using a magical Wand.
While exploring, you will find various items to aid you. Hammers can smash down wooden obstacles. Axes can be thrown or swung at your opponents. Potions and scrolls will give you temporary powers. But beware, there are also dangers, including deadly traps, bloodthirsty vampire bats, and zombies who exist only to kill living knights!
The game is for 2 or more players, and can be played online, on a LAN, or in split screen mode (2 players on the same PC). There's also a single player mode for practice, and a Tutorial to help you get started.
Gameplay Features
Flexible mission system, including 12 preset quests and a wealth of customization options

Randomly generated dungeons made from over 250 different floor parts

Diverse arsenal of weapons: sword, axe, hammer, staff, crossbow, throwing daggers

Traps to set for your opponents: poison needles, spring blades, bear traps

Magical potions, scrolls and pentagrams with unpredictable effects

4 book types with unique properties: e.g. the Necronomicon raises nearby zombies, the Tome of Gnomes is hidden behind traps and riddles

Dungeon environmental hazards: bottomless pits, switches, pressure plates, locked doors, hidden traps

Corpses may reanimate as zombies over time

Multiplayer Features
Online, LAN, and local split screen multiplayer supported

Optional team-based play

Spectator mode

Single player mode for practice

Other Features
Lua scripting system for modding and extensibility

Cross platform support (Windows and Linux)

Occasional comedy as knights die in funny and unexpected ways :)

Some History
This game was originally made for the Amiga in 1994 by Kalle Marjola. This Steam version is being released with the original author's permission and contains several enhancements, including online play, higher numbers of players (the original had only two), a deathmatch mode, and Lua scripting support.