Not quite finished with the Iron Gods Adventure Path yet. I ended up modifying some of the random encounters taking inspiration from D20 Future for the Cyberspawn.
Taking inspiration from the original Expedition to the Barrier Peaks I also added a pack of dopplegangers reskinned as terminator style liquid-state robots.
CYBERSPAWN
Medium Construct (robot, cyborg), neutral evil
Armour Class 18 (crystal carbon armour)
Hit Points 144 (17d8 + 68)
Speed 0 ft., fly 60 ft.
STR 18 (+4) DEX 26 (+8) CON 18 (+4)
INT 17 (+3) WIS 15 (+2) CHA 18 (+4)
Saving Throws Dex +9, Wis +7, Cha +9
Skills Perception +7, Stealth +9
Damage Resistances lightning; bludgeoning, piercing, and slashing from nonmagical weapons that aren’t adamantine.
Damage Immunities charmed, necrotic, poison, psychic
Condition Immunities charmed, frightened, paralysed, petrified, poisoned, stunned
Senses darkvision 60ft., passive Perception 11
Languages Gothic
Challenge 15 (13,000 XP)
Crystal Claws. The cyberspawns claws are monofilament in nature – they ignore all non-force based armour and attack against 10+DEX of the target.
Skewer. Once per turn, when the cyberspawn makes a melee attack with its crystal claws and hits, the target takes an extra 10 (3d6) damage, and the cyberspawn gains temporary hit points equal to the extra damage dealt.
ACTIONS
Multiattack. The cyberspawn makes two crystal claw attacks. When rolled it will also make one disintegrator attack.
Crystal Claws. Melee Weapon Attack: +9 to hit vs. DEX, reach 5 ft., one target.
Hit: 25 (7d6 + 4) slashing damage.
Back-Mounted Disintegrator (Natural 15+). Range Weapon Attack: +3 to hit, range 150 ft., one target.
Hit: 90 (10d6 + 40) force damage. A creature killed by the disintegrator is reduced to a pile of ash.
DESCRIPTION
Cyberspawn are the remnants of an alien species. After exhausting the supply of natural resources on their home planet, the aliens in an effort to simply survive, used psychocoders to download their personalities to a series of autonomous robots programmed to scour your nearby worlds for useable resources. AS time passed, the aliens greg weaker and sicker – and evermore depends on the robots for survival – but they never curbed their mass consumption of resources. The robots had to venture farther and farther from the home planet to fined useable resources. AS the alines became weaker and more desperate, they programmed each new generation of robots to be more and more aggressive. Not the latest generation, the cyberspawn, move form world to work din massive war freighters, taking whatever they want and killing anyone who gets in the way.