**Purpose**: Pterodactyl is the open-source game server management panel built with PHP, React, and Go. Designed with security in mind, Pterodactyl runs all game servers in isolated Docker containers while exposing a beautiful and intuitive UI to administrators and users.
[Official Website](https://pterodactyl.io/panel/1.0/getting_started.html)

Sure, I'll adjust the commands to use `yum`, which is commonly used in CentOS and older RHEL versions, and include the installation of `epel-release` (which is commonly referred to as EPEL Extras). Note that Rocky Linux, being a derivative of RHEL 8, typically uses `dnf`, but `yum` is often aliased to `dnf` in these systems for backward compatibility. Here's the adjusted script:

**Install EPEL Repository and other tools**:
```bash
sudo yum -y install epel-release curl ca-certificates gnupg
```

**Add Redis Repository**:
```bash
sudo rpm --import https://packages.redis.io/gpg
echo "[redis6]
name=Redis 6 repository
baseurl=https://packages.redis.io/rpm/6/rhel/8/\$basearch/
enabled=1
gpgcheck=1
gpgkey=https://packages.redis.io/gpg" | sudo tee /etc/yum.repos.d/redis.repo
```

**Add MariaDB Repository**:
```bash
sudo curl -LsS https://downloads.mariadb.com/MariaDB/mariadb_repo_setup | sudo bash
```

**Update Repositories List**:
```bash
sudo yum update
```

**Install Dependencies**:
Before installing PHP, check the available PHP versions in your enabled repositories. Install PHP and other dependencies as follows:
```bash
sudo yum -y install php php-{common,cli,gd,mysql,mbstring,bcmath,xml,fpm,curl,zip} mariadb-server nginx tar unzip git redis
```

7. **Installing Composer**:
   ```bash
   curl -sS https://getcomposer.org/installer | php
   sudo mv composer.phar /usr/local/bin/composer
   chmod +x /usr/local/bin/composer
   ```

This script should work well with Rocky Linux and similar RHEL-based distributions, using `yum` for package management. However, keep in mind that package names and versions may vary between repositories, so you might need to adjust them based on what's available in your system's repositories.