N! is much more harder than UV difficulty, mainly because of respawning monsters.
Enemies respawn from their corpses, so if you destroy corpses then it will stop respawning.
The main strategy is:
1. (for Phobos levels) Lure them to water or doors. If enemies are exactly killed on (open) doors, the corpses will be crushed.
2. (mainly for Hell's Arena) Kill another enemy on the corpse.
The new corpse will replace the original corpse and the preoccupied one will disappear.
To survive in Hell's Arena, you must do this with replacing caco corpse by demon's.
(You MUST have a chaingun to do this easily)
3. (later levels) Use rocket launcher! Awesome gear.
Originally I was also seeking Demonic Platinum (Win standard game on N! + Explorer),
but Phobos Lab is generated so I gave up.
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DoomRL (0.9.9.7) roguelike post-mortem character dump
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d, level 11 Cyberdemon Lt. General Scout,
defeated the Mastermind at the City of Dis.
He survived 114373 turns and scored 420846 points.
He played for 2 hours, 5 minutes and 28 seconds.
He opposed the Nightmare!
He killed 841 out of 1223 hellspawn. (68%)
-- Special levels --------------------------------------------
Levels generated : 11
Levels visited : 3
Levels completed : 0
-- Awards ----------------------------------------------------
Mastermind's Brain
UAC Star (silver cluster)
UAC Platinum Badge
-- Graveyard -------------------------------------------------
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-- Statistics ------------------------------------------------
Health 52/50 Experience 56600/11
ToHit Ranged +0 ToHit Melee +0 ToDmg Ranged +2 ToDmg Melee +2
-- Traits ----------------------------------------------------
Class : Scout
Finesse (Level 2)
Hellrunner (Level 2)
Son of a bitch (Level 2)
Intuition (Level 2)
Whizkid (Level 1)
Triggerhappy (Level 1)
Cateye (Level 1)
SoB->Int->Int->SoB->HR->HR->TH->MCe->Fin->Fin->WK->
-- Equipment -------------------------------------------------
[a] [ Armor ] red armor [6/6] (164%) (BP)
[b] [ Weapon ] plasma rifle (1d7)x6 [33/40] (T1)
[c] [ Boots ] steel boots [1/1] (67%)
[d] [ Prepared ] tactical shotgun (8d3) [5/5]
-- Inventory -------------------------------------------------
[a] rocket launcher (6d6) [1/1]
[b] chaingun (1d6)x4 [40/40]
[c] red armor [6/6] (163%) (BP)
[d] shotgun shell (x15)
[e] shotgun shell (x50)
[f] shotgun shell (x50)
[g] shotgun shell (x50)
[h] rocket (x8)
[i] power cell (x18)
[j] power cell (x50)
[k] large med-pack
[l] large med-pack
[m] large med-pack
[n] envirosuit pack
[o] envirosuit pack
[p] bulk mod pack
[q] 10mm ammo chain (x135)
-- Resistances -----------------------------------------------
Fire - internal 0% torso 25% feet 0%
-- Kills -----------------------------------------------------
108 former humans
133 former sergeants
56 former captains
172 imps
69 demons
172 lost souls
9 cacodemons
17 hell knights
20 barons of hell
11 arachnotrons
30 former commandos
11 pain elementals
6 revenants
17 mancubi
8 arch-viles
1 Cyberdemon
1 Spider Mastermind
-- History ---------------------------------------------------
He started his journey on the surface of Phobos.
On level 5 he stormed the Chained Court.
He left level 6 as soon as possible.
On level 8 he encountered the Phobos Anomaly.
On level 13 he assembled a tactical shotgun!
On level 16 he found the Tower of Babel!
On level 19 he entered the Vaults.
He came, he saw, but he left.
On level 22 he entered the Lava Pits.
He decided it was too hot there.
Then at last he found Dis!
On level 24 he finally defeated the Mastermind.
-- Messages --------------------------------------------------
Boom! The missile hits the Spider Mastermind. The Spider Mastermind flinched!
Fire -- Choose target...
You see : a Spider Mastermind (almost dead) | floor | [ m ]ore
Boom! Boom! Boom! Boom! Boom! Boom! The missile hits the Spider Mastermind.
Fire -- Choose target...
You see : a Spider Mastermind (almost dead) | floor | [ m ]ore
The missile hits the Spider Mastermind. Boom! Boom! Boom! Boom!
You reload the plasma rifle. You are hit! You are hit! You are hit! Boom!
Boom! You are hit! Boom! You are hit! You are hit! You are hit! Boom! You are
hit! Boom! You are hit! You are hit! You are hit! You are hit! Boom!
Fire -- Choose target...
You see : a Spider Mastermind (almost dead) | floor | [ m ]ore
Boom! The missile hits the Spider Mastermind. Boom! Boom! The missile hits
the Spider Mastermind. The Spider Mastermind dies. Congratulations! You
defeated the Spider Mastermind! Press <Enter>...
Boom! Boom!
-- General ---------------------------------------------------
227 brave souls have ventured into Phobos:
153 of those were killed.
4 didn't read the thermonuclear bomb manual.
And 10 couldn't handle the stress and committed a stupid suicide.
59 souls destroyed the Mastermind...
3 sacrificed itself for the good of mankind.
50 killed the bitch and survived.
6 showed that it can outsmart Hell itself.
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