
Spiders Improve Over Time
Spiders get stronger the longer you play. Buffs include increasing health, speed, damage, giving them potion effects, etc.
⬇ Download on Modrinth
Spiders Improve Over time
Spiders get stronger the longer you play. difficulty is calculated for each player separately. The improvements are gradual, taking place every 20 minutes.
NOTICE: This datapack is discontinued, instead use the Hostile Mobs Improve Over Time datapack: https://modrinth.com/datapack/hostile-mobs-improve-over-time
Stat increase
Stats that change include:
- Health
- Movement speed
- Knockback resistance
- Damage
- Armor
- Follow range
- Potion effects (for example, fire res., regeneration, speed, etc.)
- Spiders now destroy crops
Timers
Timer 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.
Commands
To test out how hard the spiders are, use functions spid:day25, spid:day50, spid:day75, spid:day100 or use command: /scoreboard players set Spiddif . To reset your score use spid:reset, to reset all of players difficulty, use spid:resetall.
Installing
Like your ordinary datapack, put zip file in datapacks folder of your world.
Unistalling
Run function skel:uninstall and remove the datapack from datapacks folder
Other
I am planning on making a version of this datapack for each common mob, then making a datapack consisting of all of them (This is the fifth mob improvement datapack I made).
Farms
Because mobs only receive improvement when 32 blocks away or closer to a player, automatic mob farms will still work fine, and you dont need to adjust the falling height or killing chambers.
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
Here are all the datapacks "X improve over time" I made:https://modrinth.com/datapack/zombies-improve-overtime - Zombies
https://modrinth.com/datapack/creepers-improve-over-time - Creepers
https://modrinth.com/datapack/spiders-improve-over-time - Spiders
https://modrinth.com/datapack/skeletons-improve-over-time - Skeletons
https://modrinth.com/datapack/witches-improve-over-time - Witches
https://modrinth.com/datapack/drowned-improve-over-time - Drowned
https://modrinth.com/datapack/silverfish-improve-over-time - Silverfish
https://modrinth.com/datapack/pillagers-improve-over-time - Pillagers
https://modrinth.com/datapack/vindicators-improve-over-time - Vindicators
https://modrinth.com/mod/strays-improve-over-time - Strays
https://modrinth.com/datapack/wither-skeletons-improve-over-time - Wither Skeletons
https://modrinth.com/datapack/endermites-improve-over-time - Endermites
https://modrinth.com/datapack/ravagers-improve-over-time - Ravagers
https://modrinth.com/datapack/cave-spiders-improve-over-time - Cave Spiders
https://modrinth.com/datapack/zombified-piglins-improve-over-time - Zombified Piglins
https://modrinth.com/datapack/guardians-improve-over-time/ - Guardians
All of them are compatible with eachother, and I recommend you play with all of them for the best experience.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.19.4
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Downloads as Spiders Improve Over time V1.1.zip
- Download size: 42 KB
- Download link checked 5 Sept 2026 — working
These come from our own check of the pack file, not from the source page.