torch
torch
Prince of Persia: Original Trilogy

All editors are available for free (zero price; gratis).
For libre software, check the "FOSS" column of the table.

(alphabetical) Prince of Persia 1 PoP2 This program is:
Apple II BBC Master DOS Game Boy Color Java ME Macintosh Mega Drive NES Sega Genesis SNES DOS for DOS for Windows for GNU/Linux FOSS
apoplexyNNYNNNNNNYYNYYY
leapopYYNNNNNNNNNNYYY
legbopNNNYNNNNNNNNYYY
lemdopNNNNNNYNYNNNYYY
NESPrincEdNNNNNNNYNNNNYNN
pophaleNNNNYNNNNNNNYYY
PoPMapNNNNNYNNNNNNNNN
POPMAPNNYNNNNNNNNYNNN
popyornNNNNNYNNNNNNYYY
Pr1SnesLevEdNNNNNNNNNYNNYNY
Pr2LevEdNNNNNNNNNNYNYNY
PrincedNNYNNNNNNNNYPNY
Princedit*NNYNNNNNNNNYNNN
RoomShakerNNYNNNNNNNNNYNN
RoomShaker IINNNNNNNNNNYNYNN

*The first editor ever created, not including Mechner's own editor of which video footage is available.