Suggested path to start on TryHackMe.com. Its possible to play all the machines on this list without having subscription. - Font:

TryHackMeFreePath.md

Level 1 - Intro

• OpenVPN https://tryhackme.com/room/openvpn
• Welcome https://tryhackme.com/jr/welcome
• Intro to Researching https://tryhackme.com/room/introtoresearch
• The Hacker Methodology https://tryhackme.com/room/hackermethodology
• Learn Linux https://tryhackme.com/module/linux-fundamentals
• Crash Course Pentesting https://tryhackme.com/room/ccpentesting

Introductory CTFs to get your feet wet

• Google Dorking https://tryhackme.com/room/googledorking
• OHsint https://tryhackme.com/room/ohsint
• Shodan.io https://tryhackme.com/room/shodan

Level 2 - Tooling

• Tmux https://tryhackme.com/room/rptmux
• Nmap https://tryhackme.com/room/furthernmap
• Web Scanning https://tryhackme.com/room/rpwebscanning
• Sublist3r https://tryhackme.com/room/rpsublist3r
• Metasploit https://tryhackme.com/room/rpmetasploit
• Hydra https://tryhackme.com/room/hydra
• Linux Privesc https://tryhackme.com/room/linuxprivesc
• Web Scanning https://tryhackme.com/room/rpwebscanning
• Shodan https://tryhackme.com/room/shodan
• RustScan (I invented RustScan so excuse the self-promo) https://tryhackme.com/room/rustscan

More introductory CTFs

• Vulnversity - https://tryhackme.com/room/vulnversity
• Blue - https://tryhackme.com/room/blue
• Simple CTF https://tryhackme.com/room/easyctf
• Bounty Hacker https://tryhackme.com/room/cowboyhacker
• Brute It https://tryhackme.com/room/bruteit

Level 3 - Crypto & Hashes with CTF practice

• Crack the hash https://tryhackme.com/room/crackthehash
• Agent Sudo https://tryhackme.com/room/agentsudoctf
• The Cod Caper https://tryhackme.com/room/thecodcaper
• Ice https://tryhackme.com/room/ice
• Lazy Admin https://tryhackme.com/room/lazyadmin
• Basic Pentesting https://tryhackme.com/room/basicpentestingjt

Level 4 - Web

• OWASP top 10 https://tryhackme.com/room/owasptop10
• Inclusion https://tryhackme.com/room/inclusion
• Injection https://tryhackme.com/room/injection
• Vulnversity https://tryhackme.com/room/vulnversity
• Basic Pentesting https://tryhackme.com/room/basicpentestingjt
• Juiceshop https://tryhackme.com/room/owaspjuiceshop
• Ignite https://tryhackme.com/room/ignite
• Overpass https://tryhackme.com/room/overpass
• Year of the Rabbit https://tryhackme.com/room/yearoftherabbit
• DevelPy https://tryhackme.com/room/bsidesgtdevelpy
• Jack of all trades https://tryhackme.com/room/jackofalltrades
• Bolt https://tryhackme.com/room/bolt

Level 5 - Reverse Engineering

• Intro to x86 64 https://tryhackme.com/room/introtox8664
• CC Ghidra https://tryhackme.com/room/ccghidra
• CC Radare2 https://tryhackme.com/room/ccradare2
• CC Steganography https://tryhackme.com/room/ccstego
• Reverse Engineering https://tryhackme.com/room/reverseengineering
• Reversing ELF https://tryhackme.com/room/reverselfiles
• Dumping Router Firmware https://tryhackme.com/room/rfirmware

Level 6 - Networking

• Introduction to Networking https://tryhackme.com/room/introtonetworking
• Smag Grotto https://tryhackme.com/room/smaggrotto
• Overpass 2 https://tryhackme.com/room/overpass2hacked

Level 7 - PrivEsc

• Sudo Security Bypass https://tryhackme.com/room/sudovulnsbypass
• Sudo Buffer Overflow https://tryhackme.com/room/sudovulnsbof
• Windows Privesc Arena https://tryhackme.com/room/windowsprivescarena
• Linux Privesc Arena https://tryhackme.com/room/linuxprivescarena
• Windows Privesc https://tryhackme.com/room/windows10privesc
• Blaster https://tryhackme.com/room/blaster
• Ignite https://tryhackme.com/room/ignite
• Kenobi https://tryhackme.com/room/kenobi
• Capture the flag https://tryhackme.com/room/c4ptur3th3fl4g
• Pickle Rick https://tryhackme.com/room/picklerick

Level 8 - CTF practice

• Post Exploitation Basics https://tryhackme.com/room/postexploit
• Inclusion https://tryhackme.com/room/inclusion
• Dogcat https://tryhackme.com/room/dogcat
• LFI basics https://tryhackme.com/room/lfibasics
• Buffer Overflow Prep https://tryhackme.com/room/bufferoverflowprep
• Overpass https://tryhackme.com/room/overpass
• Break out the cage https://tryhackme.com/room/breakoutthecage1
• Lian Yu https://tryhackme.com/room/lianyu

Level 9 - Windows

• Attacktive Directory https://tryhackme.com/room/attacktivedirectory
• Retro https://tryhackme.com/room/retro
• Blue Print https://tryhackme.com/room/blueprint
• Anthem https://tryhackme.com/room/anthem
• Relevant https://tryhackme.com/room/relevant