7+ years developing modpacks 600+ reviews on Fiverr

I build Minecraft modpacks.
You bring the idea.

Custom quests, progression, server setup, and optimization.
I’m Lucas — the developer you’ll talk to and work with.

Modpack Engineerby Lucas WilluweitWatch on YouTube

Message me on Contra

Tell me your idea, what you have, and your budget.
What is Contra? It’s where we can discuss and manage your project.

CLIENT FEEDBACK

What clients say about working with me.

Selected client reviews on Fiverr.
Actual screenshots — click to enlarge.

insidebronze, Germany, 5 stars: Absolute top-notch work! Lucas created a custom modpack with hundreds of mods, optimized everything perfectly, and designed an awesome custom main menu. Communication was great as always. Highly recommended!

retroryno, Canada, 5 stars: There is a reason I always go back to Lucas, he's the only person I trust to make a modpack that is fresh, fun, and adheres to what I'm craving (for my 2 week minecraft phase) He is so great at replying, and he supports me to the moon and back to get me what I need.

peppersongamer, United States, 5 stars: I've never been great at making modpacks but i gave it a try, but of course it was buggy and messy, and really worked like half the time, but he was able to help make my quests, and fix any bugs, and it looks amazing

swstorm, United States, 5 stars: Lucas was extremely helpful and communicative in setting up the modpack and server integration. When I ran into a slight hiccup and asked him, he was knowledgeable with his answer and also gave out solutions to the problem. further support even after everything was integrated into the server is also a plus when you work with Lucas and get his services.

Fiverr is where these reviews were left. New project inquiries go through Contra.

MY WORK

Real projects. Inside the game.

Custom menus, quest books, and progression.
Open any capture to see the details.

Dangerous Horizons custom main menu with Singleplayer, Multiplayer, Mods, Options, and Quit Game buttons — Custom main menus
A menu built around the pack’s identity. This is the actual Dangerous Horizons interface.

Actual FTB quest book showing chapter navigation and connected progression paths — Quest books & progression
Themed chapters and connected objectives, giving players a clear route through the pack.

The Storm Is Coming quest dialog with its explanation, tasks, and rewards — Guidance players can use
Written explanations, tasks, and rewards that make the next step understandable.

Watch the full client projects

See the investigation, decisions, and results on my YouTube channel.

Saving a 30 GB Minecraft world Repairing a RAM-hungry modpack Fabric crashes, skills & gameplay testing

SCOPE & BUDGET

What do you need help with?

Fix, optimize, or set up a server

Crash investigation, compatibility, performance testing, and server configuration.

$150–$450Typical project · USD

Build quests for your pack

FTB Quests chapters, explanations, dependencies, tasks, and rewards.

$500–$1,200Typical project · USD

Design a custom progression

Ages, recipes, scripts, and datapacks. Planned and developed across agreed milestones.

$2,000–$10,000Typical total project · USD

These are budget guides. I confirm the scope, timeline, and price before work begins. Complex builds can run over several months.

Support after delivery

If something goes wrong with the unchanged build I delivered, I’ll investigate and help resolve it. Later updates, added mods, or other changes may need a separate quote.

LET’S TALK ABOUT YOUR PROJECT

Start with a message.
We’ll work out the details.

You don’t need a technical specification. Send me your idea, the pack you already have, and your budget.

Message Lucas on Contra

What is Contra?

Contra is a platform for hiring independent professionals. It’s where you can contact me directly and discuss your project.

Once we agree on the scope, we can keep the proposal, contract, and payments in one place.

No meeting required to get started. For a more complex project, I may suggest a Google Meet so we can work through the details together.

How Contra works for clients ↗

MODPACK ENGINEER LAB

Want to learn to do it yourself?

Join my community on Skool for optimization training, technical discussions, and practical resources.

A paid learning community, with lessons released progressively. Having me develop your project is a separate service.

Explore the Lab on Skool

I build Minecraft modpacks.You bring the idea.