Glass Hearts

Name: Glass Hearts
Author: exaptations

Glass Hearts reworks how players gain maximum health, using in-world hearts and a Lifeforce fluid instead of potions or fixed level-ups.

ForgeClient and serverMIT LicenseOpen source1.10.2 – 1.12.2

What it does

Glass Hearts adds a Glass Heart block that a player fills with Lifeforce, a fluid collected by killing mobs with the Sapping enchantment. Each refill raises maximum health, and the hearts keep their buffs while the player lives. A few gems supplement the vanilla ones, and a single gem can be socketed into a heart to give it a special effect that depends on the gem.

The hearts hold their contents once placed, and automated piping can refill them at a faster rate. Chunks that hold a Glass Heart can unload, because the stored data is kept in a global map outside the chunk. Several players can share one Glass Heart, and a server can set PvP so that enemy players break the block instead of refilling it. Creepers are targeted by a configurable setting, and a config option controls whether undead mobs can yield Lifeforce.

Glass Hearts is a Forge mod for 1.10.2 – 1.12.2, released under the MIT License and open source. Latest build 1.0.73 targets 1.12.2 and was published on 2025-11-30. Client and server both need the mod, so players and the server must both install it.

Key features

Sapping enchantment
The Sapping enchantment collects Lifeforce from killed mobs into bottles, which is how players gather the fluid.
Glass Heart block
A placeable block that stores Lifeforce and raises the maximum health of the player who fills it.
Socketed gems
A heart can take one gem, and each gem gives a different special effect, with a few gems added beyond the vanilla set.
Shared and automated hearts
Several players can share one Glass Heart, and piping can refill it, while PvP and creeper behavior are configurable.
Health bar renderer
The health bar is redrawn with sub-half-heart accuracy, so partial health shows more precisely.

Gallery

Welcome to Glass Hearts! This is a mod idea I’ve had for a while that allows you to increase your character’s health, but in a way I feel is balanced. Let us

You can fill them with Lifeforce fluid, which makes them look like this.

You can also stick gems on them, for a number of special effects! The smoke indicates that the gem's effect is currently active, or is ready to activate.

Here's what every gem does. Note that gems that apply Resistance only affect the one heart they're on, and gems that apply When Heart Emptied will only take

How do you get Lifeforce, you ask? First you'll need a sword enchanted with Sapping! It's a fairly rare
enchant, with levels up to X (10), but the highest you

Now, with some empty bottles in your inventory, kill some stuff! Each level of Sapping is +10% chance of filling a bottle. By default, undead mobs do not yield

Now fill a heart with it, attune to it using the Opal Staff, and take some damage! (Also pictured: no
matter how quickly you fill a heart, it's limited to

Here's what it looks like after | attune to 17/18 hearts from the first few images. Glass Hearts has a fully overhauled HP renderer, complete with

Glass Hearts can be refilled with Dispensers, or fluid pipes from any mod. Dispensers are supported for vanilla-only automation. Just hook up a comparator

...hook it up to a clock! Voila, auto-refilling heart! Just add Lifeforce!

('m aware you can do this in a more compact way using a Comparator on Subtract. |

But watch out! Creepers are keenly attracted to hearts, and if you leave them where they can get to them, they will blow them up! (This can be disabled in the

1 more screenshots on Modrinth

Compatibility

Latest build for each game version and loader.

Version

1.12.21.0.73

1.11.21.0.1

1.10.21.0.0

ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Faction PvP servers

Server owners running faction-style PvP can set enemy players to break hearts instead of refilling them.

Long-term bases

Chunk unloading is handled through the global map, so a heart keeps working while its area is unloaded unless it needs automated refilling.

Who it’s for: Players who want a health progression tied to mob kills and building rather than potions, and server owners who want to tune how hearts are gained, shared and contested.

Questions

Does Glass Hearts need to be installed on both sides?

Yes. Servers that run it need every player to install it too.

Which game versions does Glass Hearts support?

Files exist for 1.10.2, 1.11.2 and 1.12.2. The latest Forge file is 1.0.73 for 1.12.2, published on 2025-11-30.

Can undead mobs drop Lifeforce?

By default they cannot. A config option allows Lifeforce to come from undead mobs if the server owner enables it.

In the catalog

Glass Hearts is one of 7,216 Magic mods on ModsFinder, and one of 3,927 Magic mods for Forge. 2,920 mods support Minecraft 1.12.2.

Magic mods7,216 Forge mods Mods for 1.12.22,920

More from exaptations

Sidekick1.17 – 1.21.1

SpindleMark1.20 – 1.20.1

QDResLoader1.18 – 1.20.1

Similar mods

Enchantment Descriptions1.9.4 – 26.3

Ice and Fire1.10.2 – 1.20.1

Botania1.6.4 – 1.20.1

Tinkers' Construct1.6.4 – 1.20.1

Vampirism1.12.2 – 26.1.2

Mystical Agriculture1.10 – 26.1.2

What the author says

A novel and balanced way to increase your health. Sapping allows you to fill bottles with Lifeforce by killing mobs. By default, you cannot gain Lifeforce from undead mobs, and there's a config option to only allow getting it from players.

exaptations, on the Modrinth page

Official listing

Modrinth page: modrinth.com/mod/glass-hearts
Owner: exaptations
Published: 2025-11-30
Updated on Modrinth: 2025-11-30
Facts verified: 2026-10-15