LifeSteal

Banner

Features:

Heart stealing: lose a permanent heart when you die, take one when you get a kill.
Inspired by the LifeSteal SMP made popular by YouTubers with very flexible configuration.
Server-authoritative and persistent: hearts are stored safely and survive restarts, reconnects, and name changes.
Two kill-reward styles to choose from: instantly transfer a heart from victim to killer, or drop a Heart item at the death location for anyone to pick up.
Eliminate at zero hearts: reach 0 and you're banned from the server until revived.
Revive Beacon system: craft a beacon, right-click it, type the eliminated player's name in chat, then confirm to bring them back with a fresh set of hearts.
Heart and Crafted Heart items let you top up your permanent hearts outside of combat, each with its own usable limit.
Withdraw command lets you convert your own permanent hearts back into physical Heart items if you want to trade them.
Fully custom crafting recipes for every item, toggleable individually without a server restart.
Admin toolkit to check, set, add, remove, ban, and unban player hearts, plus a paginated list of every eliminated player.
No client-side mod required: works with any vanilla client.

Download the .jar file.
Install Fabric Loader and Fabric API on your server.
Place the .jar file in your server's mods folder.
Start the server once to generate the config files, then edit them as needed.
Keep in mind that changing the config files directly will require a restart or the use of the /reload command.

Name	Description	Value	Type
starter_hearts	Hearts a player starts with on first join	10	Number
maximum_hearts	Highest number of hearts a player can hold	20	Number
minimum_hearts	Hearts floor. Once a player reaches this amount, dying no longer costs them a heart, effectively disabling elimination for them unless they use /withdraw to go lower themselves (use 3 if you want the lifesteal world experience as it is)	0	Number
revival_hearts	Hearts a player comes back with after being revived	3	Number
drop_heart_on_non_player_death	Whether a Heart item drops when a player dies to something other than another player	true	True/False
player_kill_reward_mode	How a killer is rewarded: direct heart transfer or a dropped Heart item	DIRECT_TRANSFER	DIRECT_TRANSFER or DROP_ITEM
crafted_heart_usage_limit	Heart count below which a Crafted Heart can still be used	20	Number
items.heart.base_item	Vanilla item used as the base for the Heart item	minecraft:nether_star	Text
items.crafted_heart.base_item	Vanilla item used as the base for the Crafted Heart item	minecraft:nether_star	Text
items.revive_beacon.base_item	Vanilla item used as the base for the Revive Beacon item	minecraft:beacon	Text
administration.banned_list_page_size	Entries shown per page in the eliminated players list	10	Number
bans.source	Label shown as the source of a LifeSteal ban	LifeSteal	Text

Recipes, item names, lore, and every player-facing message are also fully editable in the files messages.json and recipes.json.

/lifesteal hearts get|set|add|remove <player> [amount] : check or adjust a player's hearts.
/lifesteal recipe status|enable|disable <recipe> : check or toggle a recipe on the fly.
/lifesteal banned list|check|ban|unban <player> : manage eliminated players and profile bans.
/withdraw <amount> : convert your own permanent hearts into Heart items.
All /lifesteal commands require server operator permissions. /withdraw is open to every player.