CrossFire is free desktop software (for Windows, Mac and Linux) for playing the game of Spellfire online in real-time (and for other Spellfire related activities like building decks, organizing card collections and more).
Spellfire is a collectible card game from the 90's. It was discontinued, but fans have continued to develop the game by releasing new cards online. The game is easy to learn and fun to play. There is a rich set of cards to choose from, so building decks is also fun and interesting.
Installing CrossFire is a two-step process:
- Install ActiveTCL
- Install CrossFire
Download version 8.4.x (e.g 8.4.20) of ActiveState Tcl for your operating system (Windows, Mac or Linux) from here: http://www.activestate.com/activetcl/downloads. Do not use newer versions of ActiveState Tcl (e.g. 8.5.x or 8.6.x).
Download the latest version from GitHub here: https://github.com/spellfire/CrossFire/archive/master.zip. Unzip the CrossFire-master.zip file to some place on your hard drive (e.g. your desktop).
Double-click the "CrossFire.tcl" file inside the CrossFire folder that you saved to your hard drive.
Double-click the "CrossFire Launcher for Mac" file inside the CrossFire folder that you saved to your hard drive.
Click the Online Chat icon 
Ask someone to show you how to play Spellfire online via one of these communities:
If you get an error like this:
unable to open key: Access is denied.
while executing
"registry set "HKEY_CLASSES_ROOT\\$extension" ""$type"
(procedure "AssociateFileType" line 61)
invoked from within
"AssociateFileType $ext"
(rocedure "Registry::AssociateFiles" line
invoked from within
"Registry::AssociateFiles"
(file "C:\Users\Joe Smith\Desktop\CrossFire\CrossFire.tcl" line 377)
...try one of these options:
- go to "C:\Tcl\bin" Directory -> Right-click on wish84.exe -> click on Property -> click on Compatibility Tab -> Under Privilege Level, check on "Run this program as an administrator".
- Disable UAC (User Account Control) as described here: http://windows.microsoft.com/en-us/windows-vista/turn-user-account-control-on-or-off
Instead of the latest version of ActiveTcl 8.4.x (e.g. 8.4.20), you might need version 8.4.18. Searching the web for "ActiveTcl8.4.18.0.284097-win32-ix86-threaded.exe" reveales this download source: https://www.4shared.com/zip/0rlxvGbY/ActiveTcl84180284097-win32-ix8.html. Try that.