Renegade Space Marine Chapter Creation Table

A creation table for Chapters that do not serve the Imperium, nor the Ruinous Powers, choosing to go rouge instead.

Chapter Origins

Who was the Chapter's Progenitor? (d100)
1-30	Ultramarines
31-45	Blood Angels
46–55	Dark Angels
56-60	Traitor Legion
61-68	Imperial Fists
69-78	Reroll, choose a successor from that chapter, or choose unknown
79-86	White Scars
87–94	Raven Guard
95-98	Iron Hands
99	Space Wolves
100	Salamanders

When Was The Chapter Founded? (d100)
1	31st Millennium (the Chapter claims to be a Second Founding) (If rolled Traitor Legion, this must be taken by default.)
2–5	32nd Millennium
6–10	33rd Millennium
11–20	34th Millennium
21–30	35th Millennium
31–40	36th Millennium (Cursed Founding)
41–50	37th Millennium
51–60	38th Millenium
61–70	39th Millenium
71–80	40th Millenium
81–95	41st Millenium (Twenty-Sixth and last known Founding)
96–100	Unknown

Imperial Exodus (d100) Causes
1-25	Altruistic Downfall: They came to blows with the Imperial Inquisition for actions undermining their authority to aid other fellow Imperials, resulting in the excommunication of the chapter.
26-45	Chaos Use: They somehow came to discover the power of Chaos tainted weapons, and began using such artifacts. It was not long before they were driven out.
46-60	Bitter Resentment: The chapter(s) were plagued by mutations, and became fed up with the treatment of their Chapter(s) by other forces of the Imperium, and chose to strike off on their owned.
61-80	Political Suicide: Several bad political desicions and affiliations made this chapter a victim of their own ineptitude, being declared traitors and forced to flee from their former allies
81-90	Destiny: The seeds of their leaving the Imperium were implanted long ago, be it by their founders, another institution, or some other force this was always going to happen...
91-100	Cult of Personality: A single Champion within the Chapter(s) whose philosophy and ideals have lead the marines down their own path.

Properties and Defects

Geneseed Mutation Severity (d20)
1-10	Pure Geneseed
11-14	Minor Flaw: Roll once on the Geneseed Flaw table.
15-19	Significant Mutation: Roll once on the Geneseed Mutation table.
20	Heavy Mutation: Roll once on both tables.

Severe Geneseed Mutations/Deficiencies (d10)
1	Gnawing hunger for Flesh
2	Freakish eyes/Altered Vision
3	Severely sporadic sleeping patterns
4	Freakish Skin
5	Extremely twisted voices
6-8	Twisted Physical Body
9	Breath Weapon
10	Multiple (make 2 rolls, re-rolling duplicates or 10's)

Lastly, add a name, colours, and heraldry. God-Emperor help us all.