I think this might be too chunky. But for instance:

>>95967959
Improved Vision: The left eye becomes glassy black, with a silver metal lining around the eyeball. The eye can no longer blink. You gain darkvision of 60 feet.

>Upgrade 1- Gain heat-vision of 30 feet. Gain advantage on all Perception (sight) skill checks.
>Upgrade 2- Gain x-ray vision of 10 feet. Darkvision is now 90 feet.
>Max upgrade- Gain See Invisibility as a robotic (non magical) ability. Gain truesight of 20 feet as a robotic (non magical) ability.
Body Armor: Your chest becomes silver metal. While unarmored, gain +2 to AC (you may use a shield and still gain this benefit). Reduce all incoming damage by 1.

>Upgrade 1- Bonus to AC is now +3 while unarmored. Reduce all incoming damage by 2. Can now use your Action to become impervious, reducing all damage by half until your next turn. While impervious your movement speed is halved. While impervious your entire body is covered in metal.
>Upgrade 2- Bonus AC is now +4 while unarmored. Reduce all incoming damage by 3.
>Max upgrade- Bonus to AC is now +5 while unarmored. Reduce all incoming damage by 4. While impervious gain advantage on all saving throws against spell damage. Maximum speed while impervious is no longer halved.


>>95967997
Those might be a type of thing I have to input as well - cybernetic attachments that are just singular and don't go up in levels. Things like hands changing to lockpicks (or weapons) is a common cyborg trope.