# Zombies Improve Over Time
\nThis datapack increases zombies’s stats over time. The changes are made to be gradual, increasing very slightly each minecraft day up to day 100. Difficulty is calculated for each player separately. New players will start with weak zombies while players who have been playing for a while will have stronger zombies.<\/p>\n
## NOTICE: This datapack is discontinued, instead use the Hostile Mobs Improve Over Time datapack: https:\/\/modrinth.com\/datapack\/hostile-mobs-improve-over-time <\/p>\n
### Stat increase
\nStats that change include:
\n– Health
\n– Damage
\n– Reinforcement chance
\n– Knockback resistance
\n– Movement speed
\n– Armor and armor toughness<\/p>\n
Day 50 enables all zombies to break doors
\nDay 70~ – enables all zombies to pick up loot
\nDay 80 – some zombies change to baby\/or have leather armor
\nDay 95 – Zombies might gain strenght and speed when near player
\nsome other stuff<\/p>\n
### Commands ### There is now Hostile mobs improve over time datapack which includes this + many more hostile mobs, you can download it here – https:\/\/modrinth.com\/datapack\/hostile-mobs-improve-over-time – but if you wish to play with only some of them, links are below.<\/p>\n https:\/\/modrinth.com\/datapack\/zombies-improve-overtime – Zombies<\/p>\n https:\/\/modrinth.com\/datapack\/creepers-improve-over-time – Creepers<\/p>\n https:\/\/modrinth.com\/datapack\/spiders-improve-over-time – Spiders<\/p>\n https:\/\/modrinth.com\/datapack\/skeletons-improve-over-time – Skeletons<\/p>\n https:\/\/modrinth.com\/datapack\/witches-improve-over-time – Witches<\/p>\n https:\/\/modrinth.com\/datapack\/drowned-improve-over-time – Drowned<\/p>\n https:\/\/modrinth.com\/datapack\/silverfish-improve-over-time – Silverfish<\/p>\n https:\/\/modrinth.com\/datapack\/pillagers-improve-over-time – Pillagers<\/p>\n https:\/\/modrinth.com\/datapack\/vindicators-improve-over-time – Vindicators<\/p>\n https:\/\/modrinth.com\/mod\/strays-improve-over-time – Strays<\/p>\n https:\/\/modrinth.com\/datapack\/wither-skeletons-improve-over-time – Wither Skeletons<\/p>\n https:\/\/modrinth.com\/datapack\/endermites-improve-over-time – Endermites<\/p>\n https:\/\/modrinth.com\/datapack\/ravagers-improve-over-time – Ravagers<\/p>\n https:\/\/modrinth.com\/datapack\/cave-spiders-improve-over-time – Cave Spiders<\/p>\n https:\/\/modrinth.com\/datapack\/zombified-piglins-improve-over-time – Zombified Piglins<\/p>\n https:\/\/modrinth.com\/datapack\/guardians-improve-over-time\/ – Guardians<\/p>\n<\/details>\n All of them are compatible with eachother, and I recommend you play with all of them for the best experience.<\/p>\n","protected":false},"excerpt":{"rendered":" Zombies get stronger the longer you play. Buffs include increasing health, damage, knockback resistance, etc.<\/p>\n","protected":false},"featured_media":174226,"template":"","meta":{"_minecraft_slug":"zombies-improve-overtime","_minecraft_project_id":"DCSv4KSn","_minecraft_author":"KNIZE1007","_minecraft_license":"CC-BY-4.0","_minecraft_downloads":1583,"_minecraft_follows":11,"_minecraft_client_side":"optional","_minecraft_server_side":"required","_minecraft_storage_type":"zip","_minecraft_archive_name":"zombies-improve-overtime.zip","_minecraft_size_bytes":95173,"_minecraft_version_count":4,"_minecraft_updated_at":"2026-05-16T03:46:58.465185Z","_minecraft_date_created":"2023-03-03T18:43:36.619029Z","_minecraft_date_modified":"2023-05-02T16:20:56.375957Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/zombies-improve-overtime","_minecraft_icon_attachment_id":174226,"_minecraft_imported_at":"2026-06-09T23:16:46+00:00","_minecraft_import_hash":"8f299e996c2e79eee97b7f6a84387dee","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[87,84,89,137],"mod_loader":[86],"minecraft_version":[54,55,56,57,58],"class_list":["post-174225","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-adventure","mod_category-datapack","mod_category-game-mechanics","mod_category-mobs","mod_loader-datapack","minecraft_version-1-19","minecraft_version-1-19-1","minecraft_version-1-19-2","minecraft_version-1-19-3","minecraft_version-1-19-4"],"yoast_head":"\n
\nIf you wish to test out how hard the zombies are, use functions diff:day25, diff:day50, diff:day75, diff:100 or use command “scoreboard players set
\n### Timers
\nTimer for difficulty is per player, and increases every minecraft day (20 minutes). sleeping does NOT forward this timer. Max difficulty is day 100+ and difficulty does not increase after that.
\n### Installing
\nlike your ordinary datapack, put zip file in your datapacks folder of your world
\n### Unistalling
\nuse function diff:unistall and then remove your datapack from your datapacks folder
\n### Other
\nI am planning on making a version of this datapack for each common mob, then making a datapack consisting of all of them<\/p>\nHere are all the datapacks “X improve over time” I made:<\/summary>\n