Here is the route I used on my initial run for anyone looking to optimize it further! This was for the VIC-20 version of the game.

OPE COF, GET RIN, E, WAV RIN, GET KNI, ENT CHU, ENT HOL, LOO BAL, W, W

ENT FIR, GET IDO, S, E, S, GET GLA, W, GET SHO, S, E, GET SHI, GET SWO, W, N, E, E

MOV KET, ENT HOL, CLE IDO, DRO RIN, GET FOO, U, N, E, E, DRO GLA, GET CHE, MIX CHE, DRI CHE,

W, W, S, W, W, S, ENT DOO, GET CLO, E, N, E, N, S, CLI STA, SAY ZAP, D, E, N, E, E, GET BAG

W, W, S, W, N, N, ENT WIND, GET DOL, S,

S, E, SLI CHU, WAV BAG, ENT CRA, S, ENT HOL, LOO BAL, W, PUT FOOT, ON CRISTO, CIR COF, WAV STI, YELL CHANT

While working on this game a bit I figured out that the ZX Spectrum is actually a way different game. It has a more limited inventory (5 items), it is a 4 letter parser instead of a 3 letter, and more conditions for things (have to look at grave to see the clover for example). The initial route above didnt work for it, and I had to go back to the drawing board to figure it out. Here is the ZX Spectrum route:

OPEN COFF, GET RING, E, WAVE RING, GO CHUT, GO HOLE, LOOK BALL, W, W

GO FIRE, GET IDOL, S, E, S, W, S, E, DROP RING, GET SHIE, W, N, E, E

MOVE KETT, GO HOLE, CLEA IDOL, GET FOOT, U, N, E, E, GET CHEM, MIX CHEM, DRIN CHEM

W, W, S, W, W, S, GO DOOR, LOOK GRAV, GET CLOV, E, N, E, N, S, CLIM STAI, SAY ZAP, D, E, N, E, E, GET BAG

W, W, S, W, N, N, GO WIND, DROP SHIE, GET DOLL, S,

S, E, W, DROP FOOT, ON CRISTO, E, GO CHUT, WAVE BAG, GO CRAC, OPEN BAG, DROP BAG, GET STIC, S, GO HOLE, LOOK BALL,

GET IDOL, W, CIRC COFF, WAVE STIC, YELL CHANT

Also with the experiments in the ZX Spectrum I determined that the glass, shovel, and sword were all unnecessary, as well as using the bag to enter the voodoo room in all of the non ZX Spectrum games. Also, all ENTER commands could be replaced by GO commands. New optimized route is as follows for all non-ZX versions

OPE COF, GET RIN, E, WAV RIN, GET KNI, GO CHU, GO HOL, LOO BAL, W, W

GO FIR, GET IDO, S, E, S, W, S, E, GET SHI, W, N, E, E

MOV KET, GO HOL, CLE IDO, DRO RIN, GET FOO, U, N, E, E, GET CHE, MIX CHE, DRI CHE,

W, W, S, W, W, S, GO DOO, GET CLO, E, N, E, N, S, CLI STA, SAY ZAP, D, E, N, E, E, GET BAG

W, W, S, W, N, N, GO WIND, GET DOL, S,

S, PUT FOOT, ON CRISTO, CIR COF, WAV STI, YELL CHANT