Its not being a 'serious' or legally correct document might be true, but the restrictions themselves listed in section 3 in cannot logically mean that you are not allowed to log in under any circumstances.
They cannot
reasonably mean that, no. But see above "not a serious document". As it's not intended or required to stand up in court, it doesn't actually have to make any sense whatsoever. The point is to throw up a bunch of legal-sounding junk, have something they can point to as "you didn't / did do that" when issuing a ban, and if they get anything resembling a plausible challenge back, they can grant a refund as a gesture of goodwill rather than bother trying to work out which bits might actually be legally enforceable.
The document should be interpreted as a whole, and there must be a section somewhere in the doc saying something about the conditions under which you are allowed to play the game. Something along the lines of "ok buddy you pay us a certain amount of money in exchange for which we allow you to play the game with the following restrictions [see section 3]". The very existence of such a statement would prove that the restrictions set out in section 3 cannot be interpreted as something that precludes every conceivable way of logging in.
Sure, the previous section says
2. Grant and Scope of Licence
2.1 Subject to your compliance with the terms of this EULA, we grant you a non-transferable, non-exclusive, non-sublicensable, revocable, limited licence to use the Game. You are permitted to:
(a) load the Game into and Use it on a single device which is under your custody and control and which meets the specifications referred to in the manual for your own private and domestic Use;
(b) transfer the Game from one such device to another; provided the Game is Used on only one device at any one time and any device on which it is Used is under your custody and control at the time of Use.
2.2 All rights not expressly granted hereunder are, to the extent permitted by law, reserved to Frontier and its licensors. Your rights of use under this EULA are strictly conditional upon your observance of the terms and conditions contained in this EULA at all times.
Emphasis mine.
It's very clear that the restrictions then placed in the following section 3 set out ways of "using the game" or taking actions related to that which are - despite being use of the game in the broader sense - not considered acceptable.
It's
unfortunate that due to the quality of the subsequent writing, all possible ways you could have of playing the game are excluded, and indeed it is illogical for Frontier to do so or to claim to want to do so.
As far as "a certain amount of money" goes, let's see Section 6
6. Fees and Payment
6.1 To Use the Game you are required to pay a fee. You may also be able to purchase items within the Game or through the Online Features in return for specific charges.
6.2 You will be informed of the applicable fee for Use of the Game immediately prior to purchase. The current fees for the Game may be viewed at
https://frontierstore.net/.
Failure to pay any fees or charges will constitute a material breach of this EULA. We may amend the fees and payment terms at any time at our sole and complete discretion.
6.3 We may, in our sole discretion, waive any and all fees associated with the download of the Game in connection with special offers or promotions.
Again, emphasis mine. They can decide tomorrow that you, personally and no other player, are required to pay a £100 Extortion Fee, and if you don't pay it you are in breach of the EULA and can be banned.
Otherwise it would have been pointless to write such a lengthy document and a single line ("Terms of service: we provide no service whatsoever, you are not allowed to play the game, kthx") would have been sufficient.
And this is indeed almost the correct interpretation for the document as a whole (it just needs an "except at our discretion" after "game" and maybe "guaranteed" before "service").
Legality, logicality or internal consistency is irrelevant. Indeed, it's not even possible to determine if the EULA on the site is actually the one you'd be required to follow:
Frontier Developments (“Frontier”, “we”, or “us”) reserves the right to modify, alter, amend, or update this EULA at any time in its sole discretion by posting an amended version at
https://frontierstore.net/ed-eula. Any continued Use of the Game after Frontier posts such modifications, alterations, amendments, or updates constitutes your acceptance of such modifications, alterations, amendments, and updates.
[and then later]
12.6 This EULA constitutes the entire agreement between Frontier and you with respect to the license and use of the Game and the Online Features and supersedes all prior or contemporaneous understandings. No amendment or modification of this EULA will be binding unless made in writing and signed by a duly authorised representative of Frontier.
So near the top, they say that changes can be made at any time with no notice or notification just by posting the amended version.
But at the bottom, they say that no amendments or modifications are binding unless in writing and signed by an authorised representative.
The EULA on the website is in writing, but it isn't signed
So ... if you read a previous version of it, is the current version a binding modification to it or not?