Dungeons & Dragons 2024 (D&D) Subclass: Roboticist

Level 3: Robot Companion
Create a Robot Companion that acts as your familiar and starts on your Initiative. During a Long Rest or Downtime you can create a Robot Companion by using a metal scrap, clockwork component and a battery. You may only have 1 Robot Companion active at a time.
You can install a Simple weapon on the creature, a Tool and Injector. It uses your Attack bonus on its weapons attacks, your Ability Check on the Tool and can Inject medicine or poisons.

Level 6: Automaton
Create an Automaton Companion that acts as your familiar and starts on your Initiative. During a Long Rest or Downtime you can create an Automaton by using a metal ingot, a machine brain and a power core. You can program it with a simple personality. You may only have 1 Automaton active at a time.
It has half the Hit Points that were granted by your Inventor levels. You can install two Simple or Martial Weapons on the Automaton, two Tools and an Injector. It uses your Attack bonus on its weapons attacks, your Ability Check on the Tools and can Inject medicine or poisons.

Level 17: Android
Create an Android Companion that acts as your familiar and starts on your Initiative. During a Long Rest or Downtime you can create an Android by using a Living Steel ingot, a machine brain and a mini reactor. You can program it with a humanoid personality and give it a special feature. Discuss with the DM what this feature looks like.
You may only have 1 Android active at a time.
It has the same Hit Points you get from your Inventor levels. You can install two Simple or Martial Weapons on the creature, three Tools and an Injector. It uses your Attack bonus on its weapons attacks, your Ability Check on the Tools and can Inject medicine or poisons.