What Are Toxic Planets?
Toxic planets are the bio-material powerhouses of Starforge MMO — worlds wrapped in dense, corrosive atmospheres of chemical compounds expelled by hyperactive alien biospheres. The same lethal ecosystems that make the surface uninhabitable without full hazmat protection also produce bio-material compounds worth far more than anything harvestable on gentler worlds.
The flagship example is Venom World, whose toxic atmosphere drives bio-material extraction to ×2.8 — the highest bio-material yield of any planet in the known galaxy. If your empire runs on bio-tech (bio-circuits, regenerative armour, Biomancer ships), a toxic colony is the single best feedstock you can own.
Characteristics
| Attribute | Value |
|---|---|
| Atmosphere | Toxic / corrosive |
| Colonizable | Yes |
| Colonization difficulty | 4 (high) |
| Specialty | Bio-Material (highest in game) |
| Secondary | Gas (modest) |
Resource Bonuses
| Resource | Yield Multiplier | What it means |
|---|---|---|
| Bio-Material | up to ×2.8 (Venom World) | The single highest bio-material yield catalogued |
| Gas | ×0.5 | A weak secondary — don't build your fuel economy here |
Bio-material is a Tier-2 organic resource that feeds bio-circuits, regenerative armour, bio-weapons, and nano-repair systems. A toxic world out-produces even a strong ocean world (Verdania ×2.4) on raw bio-material. The trade-off is that toxic worlds offer no research bonus — they are pure feedstock factories, not the research-and-bio hybrids that ocean worlds are.
Colonization Strategy
At colonization difficulty 4, toxic worlds are genuinely hard to settle. The corrosive atmosphere eats through unprotected infrastructure, so every colony must operate inside sealed bio-domes with continuous filtration. Plan for this before you commit a colony ship.
Build order on a fresh toxic colony:
1. Bio-Dome — the whole point of the world; capture the ×2.8 bio-material yield immediately.
2. Organic Storage Vault — bio-material accumulates fast at this multiplier; don't let it overflow.
3. Defence Platform — a high-value bio-feedstock colony is a raid target once established.
4. Filtration / habitat hardening — keep base integrity ahead of spore-storm events.
5. Trade Hub — route surplus bio-material to your component and bio-tech colonies.
Toxic worlds work best as a dedicated bio-material capital: settle one, ship the output to wherever your Component Factories and bio-tech research live, and don't try to make it a generalist colony.
Unique Features & Risks
- ▸Spore-storm events. Periodic atmospheric surges can overwhelm base filters — keep habitat hardening upgraded or risk colony damage.
- ▸Hull-corroding atmosphere. Standard hull plating degrades on the surface; expect higher maintenance overhead than gentler worlds.
- ▸No research bonus. Unlike ocean worlds, toxic planets are pure feedstock — pair one with an ocean research colony for the full bio-tech loop.
- ▸High contest value. The best bio-material in the game makes these worlds worth garrisoning and worth raiding.
FAQ
Are toxic planets good for mining?
Not for metal or crystal. They are the best bio-material producers in the game (up to ×2.8 on Venom World) and a weak gas source. Settle one only if you need bio-material feedstock.
Is a toxic planet hard to colonize?
Yes — colonization difficulty 4. Colonies require sealed bio-domes against the corrosive atmosphere, and you'll contend with spore-storm events. It's a late-mid-game commitment.
What is the best planet for bio-material?
Toxic worlds, led by Venom World at ×2.8 — higher than the best ocean world (Verdania, ×2.4). If bio-material is your bottleneck, a toxic colony is the answer.
See also: [Ocean Planets Guide](/guides/ocean-planets-guide) · [How to Farm Bio-Material](/guides/how-to-farm-bio-material) · [Volcanic Planets Guide](/guides/volcanic-planets-guide) · [Wiki: Planets](/wiki/planets)