This is a stepwise solution for Jymm Pearson's "The Institute". 
Sascha Wildner solved it on a C64.

LOOK, LOOK, LOOK, LOOK, LOOK, TALK, TALK, TALK, TALK, LOOK UNDER BED,
GET MUG, WAKE UP, E, BREAK MIRROR, GET MIRROR, S, OPEN, LOOK UNDER
SHELVES, LOOK UNDER SHELVES, GET SCALPEL, OPEN, S, W, TALK, TALK,
TALK, LISTEN, LOOK WALL, E, OPEN, TALK, TALK, TALK, ATTACK COUNSELOR,
LISTEN, DROP MUG, CUT WALL, GET ROPE, LOOK, LOOK, LOOK, LOOK, E, S, S,
OPEN, ATTACK COUNSELOR, GET WATER, LOOK, LOOK, LOOK, LOOK, LOOK, LOOK,
LOOK, E, S, OPEN, GET BOTTLE, S, EAT POWDER, E, THROW ROPE, CLIMB,
FOCUS TELE, LOOK TELE, LOOK EARTH, LOOK CONTINENTS, LOOK METROPOLIS,
LOOK BUILDING, LOOK BILLBOARD, LOOK NUMBERS, CLIMB, W, TALK,
INSTITUTE, CLIMB, TALK, TALK, TALK, SHOOT, OPEN, DRINK, DRINK, DRINK,
DRINK, DRINK, DRINK, DRINK, DRINK, DRINK, DRINK, DRINK, S, LOOK BASE,
GET GLUE, E, LOOK, TALK, PEACE, KICK MIDGET, CLIMB, GLUE SHOE, CLIMB,
GO HOLE, LOOK, DROP GLUE, GET SHOVEL, GET BRONZE KEY, N, N, OPEN, LOOK
NATIVES, N, CUT STRIPS, N, DROP MIRROR, GO CRACK, LOOK, EAT POWDER,
WAKE UP, EAT POWDER, CLIMB, OPEN, LOOK, DIG PLANT, DROP SHOVEL, GET
SHRUB, S, W, SHAFLA, UNLOCK, DROP BRONZE KEY, DROP SHRUB, N, E, CLIMB,
CLIMB, N, OPEN, GET UMBRELLA, N, N, GO CRACK, LOOK, EAT POWDER, OPEN
UMBRELLA, LOOK, LOOK, LOOK, LOOK, LOOK, LOOK DECK, GET PRESERVER, S,
LISTEN, LISTEN, LISTEN, LOOK, JUMP WATER, DROP PRESERVER, DIVE, GET
CROWBAR, DIVE, DROP CROWBAR, EAT POWDER, POUR WATER, OPEN, OPEN, EAT
POWDER, S, LOOK STREAM, LOOK UNDER ROCKS, GET LIZARD, DRINK, EAT
POWDER, CLIMB, OPEN, S, E, CLIMB, CLIMB, N, OPEN, N, N, GO CRACK,
LOOK, EAT POWDER, JUMP, EAT POWDER, OPEN, KILL LIZARD, CLIMB, HOLD
BREATH, CLIMB, W, DROP MIRROR, LISTEN, LISTEN, GET STEAK, E, CLIMB,
DROP MIRROR, DROP SCALPEL, EAT POWDER, THROW STEAK, E, OPEN CHEST, GET
SCREWDRIVER, W, S, DRINK, GET CROWBAR, EAT POWDER, CLIMB, OPEN, S, W,
DROP CROWBAR, N, E, CLIMB, CLIMB, N, OPEN, N, N, GO CRACK, LOOK, EAT
POWDER, OPEN UMBRELLA, LOOK, LOOK, LOOK, LOOK, LOOK, OPEN, UNSCREW,
DROP SCREWDRIVER, GET SMALL KEY, WAKE UP, EAT POWDER, CLIMB, OPEN, S,
E, CLIMB, CLIMB, N, OPEN, N, OPEN, LOOK, UNLOCK, OPEN, DROP SMALL KEY,
GET WRENCH, WAKE UP, EAT POWDER, CLIMB, OPEN, S, W, GET CROWBAR, GET
SHRUB, OPEN, LOOK UP, CLIMB, LOOK, 56621, OPEN, MOVE COVER, TWIST
BELT, DROP BOTTLE, GET GOLD KEY, WAKE UP, N, OPEN, S, OPEN, UNLOCK,
OPEN, LOOK, TALK, TALK