Altair1

Altair1 (or Planet Altair1 Base) is a single-level PWAD for Doom II, designed by Kenneth E. Chirko and released in August 1995.

It had two sequels the following year, Altair2 and Altair3a.

Secrets

 * 1) After the caged area, open a door to the east, take a lift down, and shoot a switch to access steps. At the top, open the north wall to get a backpack. (sector 77)
 * 2) After the caged area, take the lift at the end and open the brown wall to get boxes of ammo, a box of rockets, and a berserk pack. (sector 50)
 * 3) Head northeast from the south field and use the slimy wall to the south to get to a soul sphere. (sector 91)
 * 4) Take the lift east of the entrance of Secret #3 and at the top, open the bloody wall for a rocket launcher. (sector 99)
 * 5) Take the lift north of Secret #4 and press the north switch to get boxes of shotgun shells, boxes of ammo, and boxes of rockets. (sector 159)
 * 6) Take the steps past the crusher and open the green wall to get stimpacks and partial invisibility. (sector 130)
 * 7) Keep going until you take a lift down. Ride up and hug the north wall to get a medikit and an invulnerability. (sector 227)
 * 8) Take the hall west of the lava room and open the bloody wall on the way to get boxes of rockets. (sector 171)
 * 9) Follow the armor bonuses until you get to a green wall. Open it to get a stimpack and a switch. (sector 154)
 * 10) When the wall north of Secret #9 opens, head to the end and open the west wall for a radiation suit. (sector 184)
 * 11) If you used the switch in Secret #9, head east of that secret and when the platforms rise, jump to the north corridor. Open the wall that the light is glowing on to get a light amplification visor. (sector 187)

Current records
The records for the map at the Doom Speed Demo Archive are:

The (absence of) data was last verified in its entirety on July 1, 2022.

Player spawns
This level contains ten spawn points:
 * 1) facing north. (thing 5)
 * 2) facing east. (thing 6)
 * 3) facing north. (thing 7)
 * 4) facing south. (thing 8)
 * 5) facing north. (thing 9)
 * 6) facing south. (thing 10)
 * 7) facing east. (thing 11)
 * 8) facing west. (thing 12)
 * 9) facing east. (thing 131)
 * 10) facing west. (thing 183)

Things
This level contains the following numbers of things per skill level:

Trivia

 * Altair IV is the name given to the titular planet in the 1956 movie '. It is also a planet in the ' franchise, which is a homage to the original.