Emulators

• WinEMU The C16/Plus4 emulator by Zsolt Prievara. MS-DOS and Win32 versions with PC based development tools are available.
• Minus/4 The pioneering emulator still in development by Mike Dailly. MS-DOS and Win9x. Since 1996!
• M.E.S.S. In case you like to mess further with around 30 other microcomputers. MESS supports the C16 and plus/4 since the 3rd of December, 1999. WARNING: no ROMS included! 
• CP4 - Emulation on the Amiga The best emulation by far as it supports even D64 formats extensively. Written by Gergő Gáti.
• The first Plus/4 emulator ever by Vladimir Lidovski. It was written in 100% assembly but the development is on hold since a long ago. Still, it has basic D64 and TAP-like support.
• Linux C16 emulator This emulator is distributed in source format, using an older version of the Qt programming library. I could easily compile it under Mandrake Linux 7.0. It is lacking the ROMs, joy and sound support, you can't use D64 images and development seems to have stopped a long time ago.
• The Flamingo Another emulation of the Plus/4 on the Amiga. Written by Almos Rajnai.
• The A4 homepage First emulation of the Plus/4 on the Amiga. Development ceased years ago.

General resources

• The Plus/4 page The central source of information for the Plus/4 maintained by Mike Dailly.
• The FTP archive of the Plus/4 scene (HTTP link)
• The C16 / Plus4 Discussion Board Are you looking for a particular game? Need a cheat, a startup code or general help? Why not put your question up to the Message Board?
• Lando's and Csabo's C16/Plus4 World The most frequently updated site for all your C16-Plus/4 related needs. Games, screenshots, original covers, themes, listings, scene members and more! Obligatory!
• cbm264.com American site focusing on the Plus/4's role in North American computing history.
• Die offizielle Club-Info Webseite German demo group site with regular disk-mag releases.
• GOTU Commodore Plus4 page Homepage of one of the few still active sceners. Software, hardware, pictures and more.
• W W W - C 1 6 - D E Commodore 16 and Plus/4 site, similar to Lando's Classix, only in German. You can find rare TAP images, full with cover scans, instructions and also PRG downloads.
• Shelmie's Commodore plus/4 games Shelmie's very own games for the plussy, never seen before elsewhere.

Theme-based pages

• The XeO3 homepage - Luca/FIRE is one of the few active sceners to date. In close cooperation with Mike Dailly, they are planning to write the ultimate shoot'em up scroller for the Commodore plus/4! On this page you find frequent updates and status reports about how the game is developing.
• Markus Brenner's Commodore page is a very good site with all kind of utils written by him. If you wish to make TAPs out of your original tapes, this is the place to go!
• Development package for Kingsoft's TURBO PLUS emulator integration by Götz-Tobias Heger. You can download the cartridge image as well and use it with the C16/+4 emulators.
• The ultimate Mercenary site An excellent site on the all-time classic arcade-action-adventure game, Mercenary! A must-to-visit for all plus/4 retro fans! Solutions, maps, infos, screenshots etc.
• The Mastertronic 199 range Great site with a full release list of the Mastertronic game titles between 1985 and 1990. Most of them are downloadable!
• The 100% Codemasters page, maintained by Adam Harris. You can find Codemasters' games for several other platforms, too. Original C16 and Plus/4 game covers are also available.
• 8 bit games released by Mr. Chip, Mastertronic, Gremlin Graphics and Alternative Software
• FatMan's level editor for the game Arthur Noid

Unmaintained sites

• The first W W W - C 1 6 - D E as abandoned by Andreas Tallen. Mostly game downloads in PRG format.
• The Commodore C16 and Plus/4 supersite Hardware and software, projects, hints, and tips from Claude Nehme.
• Official TCFS Design Site Author of many great converts from C64 to Plus/4, like Elite for example.
• Delta System Plus/4 Section Most of the software listed here can now be found here.
• ftp.funet.fi Plus/4 table based software directory
• The Commodore 264 Series Home Page C264 was the "original" name for the C16-Plus/4 series.
• An abandoned italian site with some screenshots, games and older emulator versions

Related sites

• Lemon - For C64 Games, Reviews, Cover Scans and SID Music. The greatest Commodore 64 related site ever. Some C16/+4 stuff too, can be found here.
• VICE, the Versatile Commodore Emulator A free, GPL-d multi-platform CBM emulator (C128, C64, VIC20, PET). Purist page, but quality software! C16-Plus/4 emulation is underway!
• M.E.S.S. ROMS All of the ROM images required by M.E.S.S. to run, can be found here.
• Oliver's Emulator Page Some of the ROM images needed for M.E.S.S. can also be found here (German).
• Commodore Gallery Web Page Great site with pictures of all Commodore related hardware.
• The Commodore Knowledge Base
• The biggest obsolete computer museum on the net