Dreamhack is a hacking and cybersecurity learning platform from Theori. Its homepage describes it as “the playground for hackers” and “the surest way to grow as a hacker,” with hacking courses and hands-on problems designed by world-class white-hat hackers.

## Learning and practice

Dreamhack provides **Learn**, **Wargame**, **CTF**, **Community**, **Ranking**, **Store**, **Subscription**, and **Enterprise** sections.

The platform says hacking and security can be learned easily, starting from beginner-friendly levels. It guides users through an effective learning path for hacking, with beginner courses, practice, and problem solving.

## Wargames and real-world experience

Dreamhack highlights “endless challenges” with **1,500+ wargames**. The site says users can immediately apply what they learn through problems, and build practical experience in real hacking environments by exploiting real vulnerabilities.

Covered areas include web hacking, Web3, system hacking, reverse engineering, cryptography, and digital forensics, with keywords such as virtual function table, buffer overflow, command injection, Double Free Bug, integer overflow/underflow, race condition, MongoDB, PHP, Node.js, Redis, nginx, Flask, Spring, CouchDB, JSP, and JavaScript.

## CTF, ranking and community

Dreamhack presents CTF as a competitive arena for hackers, where users can prove their hacking skills by raising their CTF tier. It also provides community and ranking features for learning with others and tracking progress.

## Notes

The provided material does not show a self-hosted version or deployment documentation. The service is presented as an online platform operated by Theori Korea Co., Ltd., with subscription and enterprise service options.

适合希望系统学习黑客技术与网络安全实战的人群，通过练习与知识分享提升安全能力。