NetKeen

NetKeen

Modded episode	Source code
Protagonist	Various
Author(s)	Lemm
Status	Complete
Release date	2011-02-20
Latest update	2013-03-26
Discussion(s)	PCKF: NetKeen NetKeen: Vorticons
Number of levels	136
Secret levels	0
New gameplay?	Yes
New graphics?	Some
New levels?	Yes
New sounds?	No
New music?	Yes
Download	newest (NetKeen: Vorticons)
Vote	0.00 (0 votes)

This article refers to the 2011 mod NetKeen. For the 1997 fangame of the same name, see NetKeen (1997).

NetKeen is a multiplayer source mod created by Lemm by reverse engineering the Keen Galaxy/Wolf3D code and combining it with the Doom IPX network code. The game supports LAN play and Internet play using DOSBox IPX tunneling for up to 4 players.

In 2022-04-25, John314 released Link-Keen, a heavily minimized Game Boy Advance version of NetKeen.

Game Modes

Deathmatch: 2-4 players compete for a specified number of kills.

Team Deathmatch: 3-4 players compete as a team for a specified number of kills. Teams can be either 2v2, 1v2, or 1v3.

Treasure Race: Players compete to collect the highest point value first. Players can still kill each other, but these do not count directly toward winning. Currently only 8 maps (Icing Shelf in Keen 4, Candy Dash in Keen 5, Vertical Landing in Keen 6, Toxin Tubes, Capital City, Candy Climb, Sugar Storage, and Hal's Kitchen in Keen Vorticons) have point items for this type of game.

Team Treausre Race: 3-4 Players compete as a team to collect a set amount of points first. Players can still kill each other, but it does not count directly toward winning. Teams can be either 2v2, 1v2, or 1v3. See above for info on which maps have point items.

Characters

Players can choose between 8 different characters. Due to strict memory constraints, additional characters cannot be introduced.

	Commander Keen		Princess Lindsey
	Spot		Mortimer McMire
	Lt. Barker		Council Member
	Council Page		Pajama Keen

Netkeen Vorticons Characters

In episodes 1-3, the characters Mortimer McMire, the Council Page, the Council Member, and Pajama Keen are swapped out for the following characters:

	Android Dummy		Vorticon Elite
	VortiNinja		Vorticon Woman

Items

	Gun – Gives five shots dealing 40 points of damage each. Spawns every 30 seconds. Players start with 5 and max out at 99. The Neural Stunner is featured in episodes 4-6 and Dreams. The Raygun, Vorticon HyperPistol, and Vorticon Pistol are featured in episodes 1-3.
	Bomb – Gives three bombs dealing 50 points of damge each. Spawns every 30 seconds. Players start with 0 and max out at 9. The Boobus Bomb is featured in episodes 4-6 and Dreams. The Foobus Bomb is featured in episodes 1-3.
	Life Item – Restore 5 hit points each. Spawns every minute. Players start with 100 hit points and max out at 200. Each episode has a unique life item.
	Key Item – Can be used to open certain doors for 5 seconds. The color of the key item must correspond to the gem holder in episodes 4-6 or the door itself in episodes 1-3. Spawns every minute. The gems are featured in episodes 4-6, while the keycards are featured in episodes 1-3. Although gems can be inserted into maps in Dreams, no doors that can be opened by them are available.

In addition to the items above, point items from episodes 1-6 and Dreams can be found (although no Dreams maps use point items yet). Only useful in treasure races as they give out score when collected. Spawns every minute.

Hazards

Hazards or bottomless pits will kill players immediately. By default this results in -1 to the player's kill count. This can be toggled off through the game setup's extra options.

Gun Turret shots deal 60 points of damage.

List of Maps

Keen 4 maps The Tar Pit by Ceilick Pyramid of Peril by Ceilick Mirage by Ceilick Crescent Cave by Ceilick Gnosticene Brawl by Ceilick Sand Yego Arena by Ceilick Suburbs by Ceilick Azure Cave by Ceilick Bubble Dome by Ceilick Tropica by Ceilick Sluggy Arena by Ceilick Madness Mountain by Ceilick Four Corners by Ceilick Tiki Tower by Ceilick Domefucl by Commander Spleen Icing Shelf by Commander Spleen FigurativeSpeakn by Commander Spleen Tube Story by Commander Spleen Twin Towers by Pellaeon Limbalja by LTCP Crystal Mine by Pellaeon Forrestal Pit by Pellaeon Pub Fight by Pellaeon Frungyville by LTCP Sandswept by Ceilick Pell's Resort by Pellaeon Jungle Gym by Ceilick

Keen 5 Maps QED Arena by Mink Korath Towers by Mink Backdoor by Ceilick Goplat Zone by Lemm Juggernaut by Ceilick Green Machine by Ceilick Hazardous by Ceilick Goplat Horizon 2 by Ceilick Gravity Well by Ceilick Robo Red Arena by Ceilick Candy Dash by Ceilick Red Machine by Ceilick Bridge Drop by Ceilick Pole Palace by Shikadi Tech Center by Pellaeon Inverted S by Shikadi Omegamatrix by Ceilick Scout Vessel by Pellaeon Synergy by Ceilick Forever Doors by GargApplesauce Freak Out by Ceilick Gemini by Ceilick Shivonia Isle by Shikadi Shikkers by Ceilick Shikadi Gunship by Pellaeon Captain's Office by Pellaeon Energy Motivator by Pellaeon Police Station by Ceilick

Keen 6 maps Bloog Dome by Ceilick Fribbulus Forest by Ceilick Guard Post 9001 by Ceilick Fleex Network by Ceilick Rec Arena by Ceilick Tunnels Royale by Ceilick Doom Pit by Ceilick Vertical Landing by BBalazs Storage Bay 84 by Pellaeon Space Base by Ceilick Trash Compactor by Ceilick Bips Ahoy by Ceilick Training Arena by Pellaeon Starbase Hub by Pellaeon Siege by Pellaeon Fribbs River by BBalazs Radioactive by Ceilick Dome of Disaster by Ceilick

Keen Dreams maps Keen Dreams Isle by Ceilick Bridge Battle by Ceilick Swamp Romp by Ceilick Tuberia Tower by Ceilick Apple Core by Ceilick Melon Rind by Ceilick Forts by Ceilick River Ride by Ceilick Isle in the Sky by Ceilick Mosquito Pit by Ceilick Bombardiers by Ceilick Lumberjacks by Ceilick Onion Outpost by Ceilick

Keen Vorticons maps Border Town by Ceilick Red Rock Shrine by Ceilick Martian Rumble by Ceilick Ice Rink by Ceilick Vort Command by Ceilick Cosmic Cavern by Ceilick Bottom Galley by Ceilick Cairo by Ceilick London by Ceilick Reactor Core by Ceilick Paris by Ceilick Sydney by Ceilick Washington DC by Ceilick Vortiville by Ceilick Mangling Machine by Ceilick Lower Vortiville by Ceilick Canavorta by Ceilick Schoolhouse Rock by Ceilick Fort Cavort by Ceilick Mirror Lair by Gridlock Toxin Tubes by Gridlock Capital City by Gridlock Candy Climb by Gridlock Sugar Storage by Gridlock Melty Mountainspt by Gridlock Weaponry B by Gridlock Engine Room by Gridlock Grand Intellect by Gridlock Control District by Ceilick Nature by Gridlock High Noon by Ceilick Lost Tantalus by Ceilick Vorticon Oil Rig by Ceilick Vorticon Bowl by Ceilick Cargo Pit by Ceilick Emerald Arena by Ceilick Vorti Valley by Ceilick Vorticon Mansion by Ceilick Hal's Kitchen by Gridlock Staggered Eight by Lemm Fork by Lemm Vortitemple by Mink Pyrene by Lemm

Gargapplesauce 5 Maps The GARG Zone by GargApplesauce Forever Doors by GargApplesauce Air Conditioning by GargApplesauce Battle Stations by GargApplesauce Box Arena by GargApplesauce Lock and Key by GargApplesauce Forever Doors 2 by GargApplesauce

How to use Netkeen

There are three steps for starting Netkeen: A) Enabling IPX networking in DosBox; B) Connecting the DosBoxen; and, C) Starting NetKeen

Enabling IPX Networking

In Windows, go to your DosBox installation folder (default Program Files\DosBox v x.xx) and look for a file named DosBox x.xx Options.bat (where x.xx is the version number). Running this batch file opens the dosbox configuration file. Find "ipx" and change ipx=false to ipx=true, then save and exit the text editor. You only need to perform this steps once.

Under Linux, the DosBox configuration file is found in ~/.dosbox/

Connecting the DosBoxes

For network play, one person must start an IPX server with dosbox. Other players will be clients that connect to the server.

Online Games

For online games the server must first forward a UDP port that is to be used for DosBox. On a home network, this is accomplished by logging into the router control panel and forwarding a UDP port between 1024 and 65536 (3140 in this example). For more information on port forwarding for your router, please visit http://www.portforward.com/.

Once you have forwarded UDP port 3140, mount your Netkeen folder in Dosbox. An easy way to do this is to drag and drop a file from your Netkeen folder onto the dosbox icon (do not drag and drop Netkeen.exe, use another file such as egagraph.ck5).

Once dosbox loads, enter at the command line:

ipxnet startserver 3140

Other players can connect to the server by typing at the DosBox command line (after mounting their Netkeen folder):

ipxnet connect <host ip address> 3140

The host can find their ip address on websites such as http://www.whatismyip.com/.

In choosing a server for a 3 or 4 player internet game, the computer which is geographically central is usually the best choice. Server choice can have a dramatic impact on lag, so make sure to try all possibilities.

Visit the DosBox Wiki for more information on IPX networking

Lan Setup

For Lan games, port forwarding is not necessary. The server will enter the same text at the Dosbox command line, excluding the port number:

ipxnet startserver

Other players can connect to the server by typing at the Dosbox command line:

ipxnet connect <host ip address>

In windows, the host's ip address can be found by running a command prompt and typing "ipconfig". The host's ip will be the IPv4 Address in the Local Area Connection section.

Starting Netkeen

Netkeen is started from the command line by typing:

netkeen <switches>

There are several switches required for operation:

-server : Tells the dosbox to act as a game host. ONE, and ONLY ONE player MUST specify this switch! The game host starts the games from the lobby and controls all of the game settings such as victory conditions and levels.

-nodes <number of nodes> : Signifies that you want to play a network game where the number of nodes equals the number of players. By default, a 2 player game is started if the number of nodes is left out.

-ext <game extension> : The extension of the game data (i.e. which episode) you want to play. All parties must use the same extension, or the game will not start. By default, CK5 is used as the extension. Extensions are: CK4, CK5, CK6, KDR, CKV, and GA5.

Example: play a local game (no opponents) using episode keen 4 files:

netkeen -ext ck4

Example: host a 3 player game for keen 6:

netkeen -server -ext ck6 -nodes 3

Example: join a 3 player game for keen 5:

netkeen -ext ck5 -nodes 3

Creating your own levels

Due to strict memory constraints, levels over 70x70 or containing too many different tiles will not be playable in 4 player games in which each player uses a unique character.

Download the Netkeen Modding and Levelling Package. Then use The Omegamatic to open the gamemaps file and the corresponding tilesets for the episode you wish to mod.

You will notice that despite the folder names, all files use the .ck5 extension. This is because Netkeen uses the Keen 5 engine and file information. Later, when you're ready to test your level, you will change the extension to correspond with the correct episode. For level editing purposes, always make sure the files have the .ck5 extension.

Level editing is basically the same as creating a level in Keen Galaxy. Enemies cannot be placed except for gun turrets, and spawn points can be placed with the numbered helmet sprites (for team 1 and team 2, which act as normal spawners if not a team game).

Important! When you complete your level and want to test it, you will need to combine the tileinfo with the mapfile. Make sure both your maphead.ck5 and keen5-nkX.tli file are in the same folder, where X is the episode number you are using. If you are using Windows, you can combine the files by navigating to your folder in a command prompt and typing:

type maphead.ck5 Keen5-nkX.tli > maphead2.ck5 

Then copy the "gamemaps.ck5" and the "maphead2.ck5" to another location to rename. Rename "gamemaps.ck5" to "gamemaps.ckX" where X corresponds to the game episode. Then rename "mapead2.ck5" to "maphead.ckX", again, where X corresponds to the game episode. You can then move these two files to your netkeen game folder to test your levels. All players who wish to test your level will need the gamemaps and maphead files.

For assigning songs to levels, open episode.ckX in a hex editor. The value of the n'th byte will set that song number to the n'th level. Use the music table provided with the editing package to find which values correlate with which song.

Screenshots

• 

  4-player deathmatch in the Bridge Battle map in Keen Dreams

• 

  2-player deathmatch in the Police Station map in Keen 5

• 

  2-player deathmatch in the Suburbs map in Keen 4

• 

  2-player deathmatch in the Radioactive map in Keen 6

• 

  4-player deathmatch in the Box Arena map in Gargapplesauce 5

• 

  3-player treasure race in the Candy Climb map in Vorticons

Levelpacks

A few NetKeen levelpacks have been released over the years, with download links found in the downloads section below.

• Noldor Ranzou released three levelpacks on June 20, 2015. Named Noldor Ranzou's Netkeen Level Packs, each pack has four new levels. The first is for Keen 5, the second is for Keen 4, and the third is for Keen 6. While they are graphically unchanged, they have new music taken from various sources.
• Quillax released a levelpack on March 14, 2017, named Quillax's NetKeen Levels. It was regularly updated to fix issues and add more levels until May 5, when the final update was released. The levelpack has a total of 33 levels: 7 for Vorticons, 15 for Keen Dreams, 1 for Keen 4, and 10 for Keen 6.

Downloads

• Download NetKeen: Vorticons (2013/03/26)
• Noldor Ranzou's Netkeen Level Packs
• Quillax's NetKeen Levels

External Links

• Netkeen Homepage Archived on the Wayback Machine
• Netkeen IRC Channel Play matches with other Keeners online

• NKLaunch is a tool made for launching Netkeen without command lines.

• For usage on the Pandora handheld, read this (instructions also work, for the most part, if you're on any other computer using the DOSBox frontend DBoxFE - just ignore the parts about mapping controls, and ignore the Pandora-specific directories)