Available from First Vision Software:

*** SUMMATION! V.78 with FULL RIP SUPPORT!!! - A strategy game where
the players must use careful selection and addition to outscore thier
computer or human opponents. Supports REAL-TIME multi-user, multi-node!
NEW: RIP GRAPHICS, Inter-player messages, and more!!!
*** SHAREWARE  $15.00   Filename: SUMV78A.ZIP   Magic Name: SUMMA

*** Wizard Maze 3D V1.26 - 100 levels of confusing 3D mazes. Your users
enter as a young apprentice who has mistakenly put himself on trial.
They must navigate the mazes using spells, automap, and a compass before
being overcome by noxious fumes.
NEW: Improved auto-mapper, depth shading, and more!!!
*** SHAREWARE $15.00    Filename: WM3DV126.ZIP  Magic Name: WIZARD

All doors are multi-tasker friendly and have been tested using DESQview
and OS/2. Support DOOR.SYS, DORINFOx.DEF, WILDCAT, Digiboard, Fossil,
and higher IRQ settings.

If you would like to try the above door on your own BBS download 
the listed filename from:

The Corder Pub 703/963-3878 (28.8 V.FC). 

Or file request it using the magic name from FIDOnet 1:13/14, or a local
DFN (Door File Network) or DDS node.

These doors have been tested using PCBoard 15.1, QEMM 7.01, and 
DESQview 2.61. PCBoard 15.1 and OS/2 and many other BBS configurations!