A Spore Bomb Grenade

 A Spore Bomb Grenade in a Fallout 5 game or mod should look like a mix of pre-war science gone wrong and wasteland survival ingenuity. It should have a biological, fungal, and improvised aesthetic while fitting the Fallout universe’s retro-futuristic style.

Design & Appearance

1. Organic Growth – The grenade casing should look partially overgrown with glowing spores and fungal tendrils creeping out of cracks in the shell.
2. Glass or Metal Hybrid Casing – A mix of rusty metal, cracked glass, and bio-organic material. The glass could show a swirling, pulsing green or orange spore cloud inside.
3. Vault-Tec or Big MT Markings – If tied to pre-war experimentation, it might have faded Vault-Tec logos, Big MT insignia, or biohazard warnings.
4. Handmade Look – If it’s a post-war wastelander invention, it should resemble a makeshift canister grenade, wrapped in leather straps, rope, or bandages to keep the fragile components together.
5. Glowing Spores – A faint green, yellow, or purple glow around the grenade, hinting at the mutagenic properties of the spores inside.

Functionality & Effects

• Explodes in a Cloud of Mutant Spores – Upon impact, it bursts into a thick spore cloud, affecting enemies and the environment.
• Poison & Infection – Enemies caught in the cloud cough violently, get poisoned, or contract a mutagenic fungal disease.
• Mind Control/Confusion – A variant could make enemies go feral, attacking each other in a frenzy.
• Spore Growth on Surfaces – The grenade could leave behind patches of glowing fungus, slowly spreading in the environment.
• Ghouls & Super Mutant Reaction – Some creatures might be immune, while others (like ghouls) could mutate further or be enhanced.

Lore/Origins

• Vault Experiment Gone Wrong – Vault-Tec tested biological warfare, but spores leaked and turned Vault Dwellers into fungal mutants.
• Big MT Creation – Big MT was experimenting on fungal-based bioweapons, but the experiment was abandoned when test subjects became uncontrollable.
• Survivor-Invented – A chemist or botanist in the Wasteland discovered a way to weaponize toxic spores from The Glowing Sea or another irradiated biome.