ISMP S5 client-side Modpack

ISMP S5 client-side Modpack

Client-side Modpack for member of ISMP S5. Barebones, only includes what is absolutely necessary.

by Techrul
30 Downloads
0 Followers
fabricMC 1.21.11adventurecombatmagic

About this Modpack

Client-side modpack for ISMP S5 members, contains only the mods required to connect to the server. NOT for singleplayer use; for the full experience go --> here <-- instead.

ISMP S5 is a fantasy and magic themed SMP built around Enchancement's overhauled enchanting system, with a focus on exploration through custom biomes, structures, mobs, weapon, etc. (you get the point). Install this modpack to join the official server (if you're whitelisted of course XD). It's recommended to add your own performance mods like Sodium since I don't bundle anything other than the absolute necessary mods needed. It is highly recommended to use --> JEI (Just Enough Items) <-- so you can see the recipes of custom items.

Notes:

-While I try to keep this up to date the mods may not always be on the latest version (I try my best ¯_(ツ)_/¯ ).
-Configs may not be matched to the server (only one that I know of being enchancement everything else I think is default), if you get an enchancement config error paste this into the config file:

{
"disallowedEnchantments": [
"minecraft:aqua_affinity",
"minecraft:bane_of_arthropods",
"minecraft:binding_curse",
"minecraft:blast_protection",
"minecraft:breach",
"minecraft:density",
"minecraft:depth_strider",
"minecraft:efficiency",
"minecraft:feather_falling",
"minecraft:fire_protection",
"minecraft:flame",
"minecraft:fortune",
"minecraft:frost_walker",
"minecraft:impaling",
"minecraft:infinity",
"minecraft:knockback",
"minecraft:looting",
"minecraft:loyalty",
"minecraft:lure",
"minecraft:mending",
"minecraft:multishot",
"minecraft:piercing",
"minecraft:power",
"minecraft:projectile_protection",
"minecraft:protection",
"minecraft:punch",
"minecraft:quick_charge",
"minecraft:respiration",
"minecraft:sharpness",
"minecraft:smite",
"minecraft:soul_speed",
"minecraft:sweeping_edge",
"minecraft:swift_sneak",
"minecraft:thorns",
"minecraft:unbreaking",
"minecraft:vanishing_curse",
"nova_structures:spiteful",
"nova_structures:aeirals_bane",
"nova_structures:wither_coated",
"nova_structures:ghasted",
"weaponsexpanded:withering",
"weaponsexpanded:frostbite",
"weaponsexpanded:polluting",
"weaponsexpanded:leech"
],
"invertedList": false,
"overhaulEnchanting": "CHISELED",
"singleLevelMode": true,
"enchantmentLimit": 1,
"disableDurability": true,
"disableVelocityChecks": true,
"enhanceMobs": true,
"rebalanceConsumables": true,
"rebalanceEnchantments": true,
"rebalanceEquipment": true,
"rebalanceProjectiles": true,
"rebalanceStatusEffects": true,
"toggleablePassives": true,
"weaponEnchantmentCooldownRequirement": 0.7,
"maxFellTreesBlocks": 1024,
"maxFellTreesHorizontalLength": 7,
"maxMineOreVeinsBlocks": 64,
"coyoteBiteTicks": 0,
"enchantmentDescriptions": true,
"coloredEnchantmentNames": true,
"chiseledBookshelfPeeking": true,
"invertedBounce": false,
"doublePressDirectionBurst": false,
"inputlessDirectionBurst": false
}

All mods added (I'll try to keep this up to date):

Available Versions

ISMP S5 client-side Modpack 1.4.1release
MC 1.21.11fabric6 downloads
June 6, 2026
ISMP S5 client-side Modpack 1.4.0release
MC 1.21.11fabric3 downloads
June 6, 2026
ISMP S5 client-side Modpack 1.3.1release
MC 1.21.11fabric5 downloads
June 4, 2026
ISMP S5 client-side Modpack 1.3.0release
MC 1.21.11fabric4 downloads
June 4, 2026
ISMP S5 client-side Modpack 1.2.0release
MC 1.21.11fabric3 downloads
June 2, 2026

How to Set Up a ISMP S5 client-side Modpack Server

1

Order Server

Choose at least 6 GB RAM (8 GB recommended for ISMP S5 client-side Modpack). Based on player count: per 5 players.

2

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "ISMP S5 client-side Modpack" and click "Install". The fabric loader and Minecraft 1.21.11 are configured automatically.

3

Start Server & Play

Start the server – all mods are loaded automatically. Share the server IP with friends and play together!

Frequently Asked Questions

ISMP S5 client-side Modpack server crashes or won't start – what to do?

Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 8 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.

How much RAM does a ISMP S5 client-side Modpack server really need?

Minimum 6 GB, recommended 8 GB for stable performance. per 5 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €12/month).

Can I add custom mods to ISMP S5 client-side Modpack without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.11). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.

ISMP S5 client-side Modpack server lagging – performance tips

1) Increase RAM to 8 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.

Rent ISMP S5 client-side Modpack Server

Start your own server with automatic modpack installation.

Recommended RAM:
8 GB(min. 6 GB)
From 12.00 / month
Create Server Now
1-Click Modpack Install
NVMe SSD Storage
DDoS Protection included
Automatic Backups

Details

License
MIT License
Server-side
Optional
Client-side
Required

Supported Versions

1.21.11

Start your ISMP S5 client-side Modpack Server now

From €12.00/month with 8 GB RAM for the best performance.

Configure Server →