C and C++ compiled to JavaScript, in the page ★ Star on GitHub

Heretic (shareware)

Raven Software, published by id Software, 1994 · First-person shooter

The first episode of Raven's fantasy DOOM, from the 1.2 shareware archive unpacked in the page; Raven's own Watcom DOS source, compiled whole.

Arguments

They go in this page's address, so a link to it starts the program the same way.

PRISM's log 
What PRISM says while it runs the program shows here once it is playing.

It needs a keyboard, and most games take the mouse too.

Source

sourceforge.net / projects/hereticthe program website
jfrelat-lab / prismthe compiler GitHub★ Star

The archives this build was made from, unmodified:

What these archives are · checksums

Licences

Code: GPL-2.0 (Raven, 2008)

Data: Shareware: electronic distribution, royalty free, in compressed form (LICENSE.DOC §3)