Warhammer 3 Overhaul Mods: SFO vs Radious vs OvN

Original AI-generated siege concept art for this guide; it is not a depiction of a specific mod or gameplay. — Original AI concept art for this guide; not gameplay or a screenshot of the mod.

THE SHORT ANSWER

"Overhaul" mods rebuild Warhammer 3 from the ground up. The four you will hear about most are SFO / Grimhammer III, Radious, OvN (Old World Reborn / Lost Factions), and The Old World map. They are not interchangeable — pick based on how much you want the game changed.

This is the "big leagues" of WH3 modding. Where QoL mods tweak, overhauls transform. Here is the lay of the land.

The Contenders

SFO / Grimhammer III – Storm of Chaos

The veteran "hardcore rebalance." SFO (Steel Faith Overhaul) brings tighter balance, tougher AI, and a steeper difficulty curve. In WH3 it ships as Grimhammer III – Storm of Chaos. Best for players who found vanilla too easy and want a long, punishing campaign. Note: it is incompatible with many smaller faction mods unless a submod exists.

Radious Total War Mod

The classic "more stuff" overhaul — expanded rosters, new units, and campaign changes across many races. Lighter on rebalance than SFO; best if you want more content without a brutal difficulty spike.

OvN — Old World Reborn / Lost Factions

Rather than rebalance, OvN adds entire new races done to a professional standard — Araby being the standout (see our Araby guide). Best if you crave new factions to play, not a harder version of the old ones.

The Old World (map mod)

A lore-accurate campaign map rework — e.g. eight-peaked mountain actually has eight peaks. Still in active development. Best for players who want a more faithful Old World geography.

Quick Comparison

Mod	Style	Best for	Difficulty
SFO / Grimhammer III	Hardcore rebalance	Veterans wanting a challenge	High
Radious	Content expansion	"More units / more races"	Medium
OvN Lost Factions	New playable races	Fresh factions (Araby, etc.)	Vanilla-ish
The Old World	Map rework	Lore-accurate geography	Vanilla-ish

In-game screenshot pending

A user-captured comparison of the relevant mod menus or campaign maps.

To be captured by the user from their own game installation. This space does not contain fabricated or AI-generated gameplay.

Placeholder — not an in-game image.

How to Choose

Want a tougher, deeper game → SFO / Grimhammer III.
Want more toys, same vibe → Radious.
Want to play something brand new → OvN (start with Araby).
Want the map to make more sense → The Old World.

Install Notes

Large overhauls can overlap. Run one at a time unless the authors or an explicit compatibility submod support a particular combination. Always read the mod's required dependencies and submod list, and load it through the Mod Manager.

Verdict

You do not need an overhaul to enjoy WH3 modding — our QoL pack and Mixu collection are enough for most. But when you are ready for a different game entirely, SFO and OvN are the two names to know.

Mods & credit: SFO/Grimhammer III, Radious, OvN, The Old World — all on the Steam Workshop, by their respective teams. Independent comparison; in-game imagery should be captured by you from your own installation.

Part of the WarhammerGuide WH3 Mod series. Next: Araby guide · Lizardmen mods.

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