
To play this custom level:
- in classic DOS mode - run TOMB_DOS_BASIC_START_HERE
- in DOS mode with glide (enhanced graphics) - run TOMB_DOS_GLIDE_START_HERE
(I tried to apply tombati.exe but failed - you may try but you need Treeble's GLRage pack not included in this download - check Unofficial Custom Level Forum thread on forum.trle.net)

1)  To start a normal low graphics game of Tomb Raider click on the first choice. (It used to be that one had to hit F1 to make Tomb Raider go into supervga mode, but DOSBox should now take care of that automatically.) If there is no sound, exit Tomb Raider. There should be a C: prompt. Type SETUP. Allow the sound card to be auto detected, and accept default choices that are given for the sound card. At the C: prompt, type TOMB to play the game.

One advantage is that this is an SVN DOSBox build with an interactive menu on top. It is easy to change  window resolution to say 1024x768. Other parameters can be tweaked on the fly, although most of the default settings should work. Use Ctrl-F11 to reduce the cycles if Lara is overly responsive to a key press (use Ctrl-F12 to increase cycles, and improve performance). On my computer I found the game was too quick, so I edited the configuration file with "cycles=auto limit 84000" to make play more like I remembered from DOS.


2) To start a game in full screen Glide click on the second choice. The graphics will be better, so a wall cartouche looks like it has rounded corners, instead of a pixilated edge. Note that a configuration file TR_glide.conf is being used. Here fullscreen=true and fullresolution=1280x960, which is a double of the Glide resolution of 640x480, so there should be no distortion. A batch file starts TOMB-V.EXE, which is a patched Voodoo Rush Tomb Raider. There is no menu bar at the screen top, but you can still adjust cycles, using Ctrl-F11 to lower cycles.

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I originally tested this with http://ykhwong.x-y.net/ download SVN DOSBox of May 21, 2012. Later tests with the November 10, 2012 and February 5, 2013 SVN DOSBox failed completely for Glide in Tomb Raider 1. Therefore this uses the May 21, 2012 version, the only one that worked for me.