On the Singularity test server, you can test ship equipment for the abyss, wh and anomalies. Installation of citadels, Control Towers and much more. And for free, since everything costs 100 ISK on the test server. And if you don't have enough ISK, you can get ISK by smashing ships into NPCs and getting insurance for them.

Here are some commands for the chat in the test server, for copying skills, corrals, activating omega, teleport, etc.:

Commands

/moveme
The /moveme command allows you to teleport your character to one of predefined locations. Keep in mind, if your character has an active PvP log-off timer while being in space, it will not work. Dock to a station, or wait out the timer before using it.

After entering the command, you should see a window containing a list of system names. Click needed system to teleport you there. As for now, these locations should be available:

• M-OEE8 (main combat system)
• FD-MLJ (mass test system)
• Jita, Amarr, Rens, Dodixie (empire trade hubs)
• Thera (wormhole hub)
• J124504 (C6 system with red giant effect)
• J152820 (C5 system with pulsar effect)
• J171225 (C4 system with black hole effect)
• J001348 (shattered C3 system with cataclysmic effect)
• J122137 (C2 system with magnetar effect)
• J000528 (small shattered system with wolf-rayet effect)
• "Shattered" wormhole systems are systems having no moons, so you are unable to build a POS there.

/copyskills
The /copyskills command compares your skills on Singularity with a daily snapshot of TQ and adds the missing covered skills and skill levels to Singularity.

Please note: Covered skill levels are skills levels you had while playing last time. For example, if you had some skill trained to level 1, started train it to level 2 and logged off, it will count as covered level 2 only after it's trained to level 2, and you logged in TQ after it's trained to level 2. Only after that it will be part of a TQ snapshot which is being taken in the middle of the night (GMT). Also, note that the "copyskills" command is blocked for 14 days after using a skill extractor.

/boostsov
The /boostsov command boosts the sovereignty claim time and the development indices of the current system to allow usage of all upgrades.

/booststandings
The /booststandings command boosts the standings of several NPC entities towards your character to +10. This includes most NPC factions and if you are docked in a NPC station it also includes the station owner corporation and the agents in this station. This should help a bit with testing missions.

Some other commands
These commands were available in the past, but you have no warranty they will work right now:

/alpha
The /alpha command changes status of your clone to "Alpha".

/omega
The /omega command changes status of your clone to "Omega".

How to get 1kk sp on main / Как получить на основу 1кк сп?
On any account, even an old one, follow the link, and at the bottom under the fields, click "Log in to become a recruit". You don't need to fill out the form: 1млн навыков бесплатно сп / 1mln free skills.

/copyships
The /copyships command copies ships (with fitting) from TQ to Singularity's 6-CZ49 system (at least it was possible in 2016, and the 6-CZ49 system was the main combat system at that moment, so, in current circumstances, it may be the M-OEE8 system).

Helpful Workarounds
1) While skill injectors are not seeded on the market, PLEX is. You can purchase enough PLEX to buy skill extractors and us them on yourself to "ReSpec" your skillpoint allocations. Keep in mind PLEX bought on Sisi stays on Sisi. Furthermore anything bought on the New Eden store on Sisi also only applies to Sisi. You WILL NOT be able to redeem items bought on Sisi on Tranquility.
2) With PLEX being seeded you can also purchase multi character training for your remaining character slots. You can have these characters train skills for the purpose of harvesting their skillpoints and bridge training gaps that way. Alternatively you have these characters train for specific roles you are looking to test particular content without having to commit a major investment on tranquility.
3) Not Space rich? That is ok! You can safely, effectively and entertainingly conduct spaceship insurance scams. Simply purchase a ship off the market, insure it for maximum. Then undock in 6-CZ49 and someone will happily attempt to blow you up if you ask nicely. Capital ships such as the Rorqual return for around 1.5 billion ISK or more. This can also present an opportunity to familiarize yourself with what it takes to destroy said ships.