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Construct Generator — 5e golems, automatons & animated objects

Golems, guardians, clockwork and animated things, with immunities that make them feel built.

Artwork

Stat block

Actions

Lore

Describe your creature

Try

Challenge rating

Artwork, stat block and lore in about 30 seconds.Free creations join the public Bestiary. Terms.

What is the Construct Generator?

This free construct generator builds custom 5e golems, automatons, animated objects and clockwork guardians with a full stat block at the CR you choose. Constructs get the traits that make them feel made rather than born — poison and psychic immunity, immunity to charm, fear and exhaustion, Immutable Form and orders from their creator — plus artwork and lore. Free, no account needed.

Example stat block: Rustgate Sentinel

A CR 4 construct made with this generator, with every number worked out by the 5e rules.

Rustgate Sentinel

Large construct, unaligned

Armor Class 17 (natural armor)

Hit Points 85 (10d10 + 30)

Speed 30 ft.

STR

19 (+4)

DEX

8 (−1)

CON

17 (+3)

INT

3 (−4)

WIS

11 (+0)

CHA

1 (−5)

Damage Immunities poison, psychic

Condition Immunities charmed, exhaustion, frightened, paralyzed, petrified, poisoned

Senses darkvision 60 ft., passive Perception 10

Languages understands the languages of its creator but can’t speak

Challenge 4 (1,100 XP)

Proficiency Bonus +2

Immutable Form. The sentinel is immune to any spell or effect that would alter its form.

Password. A creature that speaks the sentinel’s password within 30 feet of it is ignored by the sentinel for 1 hour. The password has not been changed in two hundred years.

Actions

Multiattack. The sentinel makes two Slam attacks.

Slam. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage.

Rust Exhalation (Recharge 5–6). The sentinel vents rust in a 15-foot cone. Each creature in that area must make a DC 13 Constitution saving throw, taking 18 (4d8) acid damage on a failed save, or half as much on a successful one. Nonmagical metal armour worn by a creature that fails takes a permanent −1 penalty to the AC it offers.

Rustgate sentinels were built to hold the gates of a city that no longer exists. They still stand where the gates were, and they still ask for the password.

Construct design tips

Constructs are the guards that never sleep and never take a bribe. They are perfect for dungeons and wizard towers because they explain why something has stood in a corridor for three hundred years.

Typical 5e construct defences include immunity to poison and psychic damage and to the charmed, exhaustion, frightened, paralyzed, petrified and poisoned conditions. That shuts down a lot of spells, so give the party another way in: a control word, a weak seam or a creator who left instructions.

Describe what it was built for and the generator gives it orders, a weakness and a lore entry explaining who built it.

Give it somewhere to live

The free map generator draws the lair, cave or ruin, with a grid, hazards and a key of locations.

Open the map generator

Frequently Asked Questions

What immunities do constructs have in 5e?

Most constructs are immune to poison damage and the poisoned condition, and many are also immune to psychic damage and to being charmed, frightened, paralyzed, petrified or exhausted. Golems usually add Immutable Form and Magic Resistance.

How do I stop a construct being unbeatable for spellcasters?

Give it a weakness the party can discover: a control word, a vulnerable damage type, a power source to destroy or an order it must obey. The generator usually includes one.

Can I generate animated objects?

Yes. Describe the object — a rug, a suit of armour, a library — and pick a low CR. Animated objects are usually CR 1/4 to 2.

Can I make a golem at a specific CR?

Yes. Pick the CR before you forge. Classic golems run from CR 5 (flesh) to CR 16 (iron), and the generator scales hit points, damage and save DCs to match your choice.

Is the construct generator free?

Yes. You can generate without an account, within a small daily allowance. A free account lets you keep going and save.

More free D&D generators

LoreKeeper’s other free generators build the place and the people around your monster, and a free account keeps everything together in one world.

More free generators

Monster Generator

Any creature, any CR: the full monster generator with the CR reference table.

NPC & Character Generator

Generate the villain behind the monster, or the hunter on its trail.

Map Generator

Draw the lair, dungeon or region with a grid you can play on.

Create a free account to keep everything

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