Only Bottle Caps Mod (1.21.1, 1.21) – Treasure Fishing Drops

Available for:Fabric

Cobblemon players who want full control over their Pokémon's IV stats now have a simple, fishing-based solution. Only Bottle Caps Mod introduces silver and gold Bottle Caps as treasure loot drops, letting you max out individual IVs, boost all six stats at once, or even zero them out with special Withered variants. It ties neatly into vanilla and PokeRod fishing mechanics, so there's no new system to learn — just cast your line and hope for treasure.

Key Features

  • Silver & Gold Bottle Caps via Fishing — Both cap types drop as treasure loot when fishing with a regular fishing rod or a PokeRod, giving you a gameplay-driven way to earn IV upgrades.
  • Stat-Specific Crafting — Craft a Silver Bottle Cap with the matching stat mint leaf (for example, a White Mint Leaf for HP) to create a cap that maxes one specific IV to 31.
  • Gold Bottle Cap – Max All IVs — A single Gold Bottle Cap sets every IV stat on a Pokémon to 31, perfect for competitive-ready builds.
  • Withered Bottle Caps — The opposite of normal caps: craft any Bottle Cap with a Wither Rose to create a Withered variant that sets an IV stat to 0 instead of 31, useful for trick room or low-speed strategies.
  • Lightweight Cobblemon Addon — Designed as a small, focused add-on for Cobblemon. The mod appears to be lightweight and adds only what it needs without extra bloat.

Screenshots

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How to Install

  1. Download and install Fabric Loader for Minecraft 1.21.1 or 1.21.
  2. Make sure Fabric API and Cobblemon Mod are both placed in your mods folder.
  3. Download Only Bottle Caps Mod for your Minecraft version from the link below.
  4. Drop the downloaded .jar file into the .minecraft/mods folder.
  5. Launch Minecraft with the Fabric profile and start fishing for Bottle Caps!

Requirements

Requirement Details
Mod Loader Fabric
Dependencies Fabric API, Cobblemon Mod
Minecraft Version 1.21.1, 1.21

Pros & Cons

Pros

  • Integrates naturally with existing fishing mechanics — no new systems to learn
  • Offers both individual stat control (Silver) and full IV max (Gold)
  • Withered Bottle Caps add strategic depth for niche competitive builds
  • Appears to be lightweight with minimal impact on your mod setup

Cons

  • Fabric-only — no Forge or NeoForge support available
  • Requires Cobblemon as a dependency, so it won't work with other Pokémon mods
  • Drop rates depend on fishing treasure loot RNG, which may feel grindy

Download

Minecraft VersionLoaderDownload Links
For Minecraft 1.21.1, 1.21
Fabric

Always download mods from official sources to stay safe.

FAQ

How do you get Bottle Caps in Only Bottle Caps Mod?

Bottle Caps are obtained as treasure loot while fishing. You can use either a regular fishing rod or a PokeRod to catch both Silver and Gold Bottle Cap variants.

What is the difference between Silver and Gold Bottle Caps?

A Silver Bottle Cap can be crafted into a stat-specific cap that maxes one individual IV to 31. A Gold Bottle Cap maxes all six IV stats on a Pokémon at once.

What do Withered Bottle Caps do?

Withered Bottle Caps are crafted by combining a Bottle Cap with a Wither Rose. Instead of maxing an IV to 31, they set the targeted stat to 0 — useful for strategies like trick room teams that benefit from lower stats.

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