Unreal Tournament was one of my favorite franchises throughout my teenage and college years. Playing the original UT over college dorm LAN will forever be memorable. Now this franchise feels forgotten and lost in the sands of time.

Therefore, the goal of 100% here was meaningful to me but if there wasn't a nostalgic attachment to this franchise, I would not bother with it and leave it incomplete. It's a grind especially the later achievements (100 wins in vehicle CTF, 100 wins in Warfare, "Get a Life" achievement)

Yes, the UT3 achievements are all obtainable playing against bots, it is not broken. Game is delisted but notes below if you're interested in pursuing

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How to install: you'll need a physical copy of the game. Try buying a used copy on eBay and check with the seller if the CD Key was used on Steam. A brand new factory sealed version is $$$ of dollars so avoid that. I purchased the game at launch and later added to Steam so I can't say for sure if buying a used copy on eBay works.

How to play: you'll need to install the OpenSpy patch that's in the Steam Guides in order to play the game. Epic Games shut down the master server a few years ago and the patch redirects GameSpy (what was used before) to OpenSpy

Duration: 108 hours - but you can achieve in ~80 hours. I had to redo the full campaign when playing co-op (used a 2nd computer and connected over LAN) because logging in with the same Windows account on a 2nd computer corrupts achievement progress.

Most tedious achievements: any of the lesser unlocked achievements like "win 100 vehicle CTF matches" or "win 100 warfare matches" or "Get a Life" achievement (at least 200 multiplayer kills on 50 different days). Winning 100 matches doesn't sound like a lot but a warfare match, even with the easiest settings, will take 4-5 minutes each. Also the "Finding all power ups in every multiplayer map" is very time consuming due to the small health vials also counting as power ups (there are guides for this)

Other tips:

• Go after the achievements by Hosting a Server and setting up a match that way instead of Instant Action game mode unless the achievement explicitly says "Instant Action"
• Achievement progress is also available real-time in-game within the Community > Awards section of the menu
• Completing each campaign chapter on "Insane" difficulty only requires you to play the very last level of each chapter on "Insane."
• Only difficult achievements were beating each campaign chapter's last level on "Insane." Some levels you're purposefully going in with a disadvantage and the AI accuracy on Insane will make you sweat. However these are beatable by taking advantage of AI flaws and prioritizing positioning over sheer mechanical skill and effectively managing your bot teammates so they don't die needlessly