Productive Frogs

v1.0.0 — 2026-05-24

First public release. Minecraft 1.21.1 / NeoForge 21.1.230.

Production loop

• Six parent slime species, each in a themed biome: Bog (swamps), Cave (dripstone / deep dark / lush caves), Geode (mountain peaks), Tide (oceans), Infernal (nether), Void (end islands).
• Right-click a parent slime with a variant primer item (iron ingot, copper ingot, diamond, prismarine shard, magma cream, ender pearl, etc.) to convert it into a variant Resource Slime.
• Six matching frogs — Bog Frog, Cave Frog, Geode Frog, Tide Frog, Infernal Frog, Void Frog. Each eats only Resource Slimes of its species.
• Frog kills a Resource Slime → drops a Configurable Froglight stamped with the slime's variant.
• Smelt the Froglight in a vanilla furnace → get the original resource back.

Production block

• Slime Milker — furnace-style appliance. Drop a variant Slime Bucket in the input slot, get the matching Slime Milk bucket out 100 ticks later. Hopper-compatible.
• Slime Milk source blocks — place in world to spawn the source variant slime periodically. Self-sustaining production loop.

Item collection

• Bottle of Frog Eggs — right-click vanilla frogspawn with a glass bottle to bottle it. Prime the bottle with a variant primer to assign a species. Place on water to hatch into tadpoles.
• Primed Frog Egg blocks — six species. Place on water; hatches into species tadpoles after a delay.
• Resource Tadpole Bucket / Slime Bucket — capture / release with category and variant preserved.
• 30 spawn eggs (6 parent species + 6 frogs + 6 tadpoles + 12 variant slimes).

Integrations

• JEI Information pages on every PF item — explains the production role, who hunts what, what smelts to what. Dynamically generated from the SlimeVariant datapack registry.
• Jade — drop-in compatible (no plugin code needed); shows species + variant in the in-world entity tooltip.

Datapack-driven

• Add new slime variants without recompiling: drop a JSON in data/<modpack>/productivefrogs/slime_variant/<name>.json (the primer_item field is the exact 1:1 match for infusion), an inner-cube texture, a smelting recipe, and a lang entry for the display name. JEI Information pages auto-extend to cover the new entry.
• Cross-mod variants (Mekanism, Create, Thermal, etc.) gated by mod_loaded neoforge conditions — see docs/cross_mod_compat.md.

Known limitations

• One end-to-end AI tongue gametest (frogTongueAiPathDropsConfigurableFroglight) is timing-flaky in CI and runs as required = false. The drop path is independently covered by matchingFrogKillDropsConfigurableFroglight (manual hurt damage, no AI).
• No automation (hoppers, power, pipes, multiblocks) in v1.0 — that's the V2 scope; v1.0 is the playable foundation + hand-operated appliance layer.

Modpack note

This is a fresh release on the MC 1.21.1 line. There is no migration path from earlier 1.21.11 / 1.21.x development snapshots; modpack maintainers carrying those should regenerate worlds.