The only episode in the shareware version, this episode is really easy, both combat and puzzle-wise. I really don't know why I'm even
writing a solution for this episode...

E1M1- Hanger

i. Head N and open the door.
ii. Head E then S.
iii. Keep heading S until you can touch the exit switch

E1M2- Nuclear plant

i. Head E to either of the 2 doors.
ii. Go up the stairs then get the red key.
iii. Retrace your steps to the starting room then head through the red door.
iv. Walk forwards and up the stairs.
v. Walk around the pathway to the elevator
vi. Flip the switch at the other end of the room
vii. Head through either of the opened passages.
viii. Go down the stairs, and enter the pit in the room (watch out for the imp that will appear on harder difficulty settings)
ix. Press the switch.

E1M3- Toxin Refinery

Blue key

i. Exit room and head through the left-hand door.
ii. Head north to the slime pit.
iii. Walk around the pit to the other side.
iv. Follow the corridor around to the blue key.
v. Get the blue key and kill all monsters.

Exit

i. Retrace your steps back to the slime pit at the beginning.
ii. Go through the blue door.
iii. Go through either passage.
iv. Go up the stairs to the exit room

E1M4- Command Center

Note: Apparently there is a very fast, easy way to finish this stage.
If you know or can find out what it is could you please e-mail me?

Blue key

i. Open the door and go through any of the three passages you can see.
ii. Enter the central room and get the blue key.
iii. Exit the room by standing in the patch of light.

Traverse the maze

i. Head to the W end of the room.
ii. Go to the left and enter the blue room.
iii. Head through the SW passage.
iv. Follow it round, then go through the NE passage at the next junction.
v. Head E then immediately N again to exit the maze.

Leave level

i. Grab the yellow key and keep following the corridor around.
ii. Press the switch and open the door.
iii. Go up the stairs, cross the bridge and exit the level.

E1M5- Phobos Lab

Yellow key

i. Go north across slime pit then head E as far as you can go.
ii. Go north and watch bridge rise.
iii. Go back and head up stairs.
iv. Cross the bridge and enter dark(ish) passage.
v. Get key at passage end and retrace your steps back to the first door.

Enter central complex

i. Open door and head left through yellow door.
ii. Go down and left or right.
iii. Cross slime pit and press switch.
iv. Go back through yellow door.
v. Enter newly opened door across slime pit.

Blue key and exit

i. Go to blue room.
ii. Hit switch in alcove at end of room.
iii. Follow twisting dark passage around to blue key room.
iv. Get key and go down stairs and through blue door.
v. Keep to right hand wall in maze to find exit room.
vi. Enter room and flick switch.

E1M6- Central Processing

Red key

i. Exit entrance room and head right into large room.
ii. Get red key from the end of the room.
iii. Exit room. If entrance is closed wait until it opens.

Blue key

i. Follow path to red doors.
ii. Enter either one and follow corridor around to blue key.
iii. Go back to start room.
iv. Enter room across from starting position. (I'll call this room the 'hub')
v. Head through E opening to blue door.

Yellow key

i. Go south at every junction in the maze.
ii. Flick switch when you find it.
iii. Go back to room with off-coloured wall (from switch go N to intersection, then go W at intersection, then head N until you see the open door)
iv. Go to end of room and grab the key.
v. RUN back to intersection then go N to blue door.

Exit

i. At 'hub' room go NE through yellow door.
ii. Head upstairs then go N downstairs.
iii. Go N up either staircase and continue until you hit the switch.
iv. Go back down 2 flights or stairs then W through newly opened door.
v. Go down either flight of stairs (again).
vi. Find and hit switch in this room.
vii. Go N to exit room and hit the switch.

E1M7- Computer Station

Yellow key

i. Exit start room.
ii. Head SE to blue area with elevator.
iii. Ride elevator up and follow ledge around to alcove with the yellow key.

Red Key

i. Drop down and go S then W through yellow door.
ii. Follow right wall around without entering any doors until you reach the room with lowering pillar.
iii. Kill monster in pillar then head right until you reach a door.
iv. Open door and go through elevator in far side of room.
v. Follow corridor and grab red key.

Blue key

i. Retrace steps to yellow door.
ii. Stick to left-hand wall and go through red door.
iii. Grab blue key then go back to yellow door and enter it.

Exit!

i. After going through yellow door, head S until you see blue door to your left.
ii. Enter door and go through right opening.
iii. Follow corridor around to switch.
iv. Press switch and go back to room.
v. Go through the now open door and keep going until you reach the exit.

E1M8- Phobos Anomaly

Defeat Barons

i. Press switch at start, then shoot barrels to kill demons.
ii. Head left then go down to the end of the long corridor.
iii. Press the switch then ride the elevator up.
iv. Walk forwards to engage barons in fight....

HINTS FOR BARONS

Easy skill levels [Too young to die, not too rough]
Get out a powerful weapon and circle the barons, shooting.
Harder skill levels [hurt me plenty, ultra-violence, nightmare]

Try to get the barons to hurt the specters and grab the powerups around the levels edge. When the barons have finished off the specters,
circle the barons and fire. If the specters are becoming a problem, take some of them out so you can move around easier.

Enter gateway to Deimos

i. Wait for walls to lower
ii. Go to structure and press switch on side.
iii. Head up stairs and step onto evil symbol.
iv. Kill as many demons as possible before you die!!!

E1M9- Military base

Yellow key

i. Head out to the courtyard then go through W passage.
ii. Go around barrier to get key.

Red key

i. Go back to courtyard.
ii. Head through E passage.
iii. Go S through yellow door.
iv. Grab key and kill monsters.

Blue key

i. Head W through yellow door, then W again through red door.
ii. Hit switch in SW of room.
iii. Go E or through newly opened door.
iv. Get blue key.

Get the hell out

i. Head N to courtyard.
ii. Head N through blue door.
iii. Drop into trench and follow it around to button.
iv. Press button and go through newly opened door.
v. Go to end of new passage to elevator.
vi. Open door at top of elevator then cross bridge to flick exit switch.