Spoiler: More on why I thought that it would violate the Minecraft EULA It all begun when I started to search for SkyBlock rules and best phrase those in this post: https://hypixel.net/threads/suggestion-how-clear-skyblock-rules-could-look-like.2558819/ I found this in the Server and Hosting part of EULA of Minecraft: Spoiler: Complete 'Server and Hosting' - Part of the EULA Servers and Hosting With hosting servers we want to enable the community to make money by creating, hosting and maintaining servers for Minecraft, so you may do this subject to these Guidelines. You may have seen the Blog post on server monetization https://www.mojang.com/2014/06/lets-talk-server-monetisation/ and the follow up Q&A https://www.mojang.com/2014/06/lets-talk-server-monetisation-the-follow-up-qa. This section of these Guidelines clarifies them. By "server," we mean a single connecting address or IP number. Therefore, if you comply with and follow the Brand and Asset Usage Guidelines and Naming Guidelines above YOU MAY: charge for access to your server, including a server which hosts your Mods, BUT only if: you make a single charge per person that is the same for everyone; you give everyone you charge, access to all the Mods that you choose to have on your server (except only in respect of genuine admin tools / admin Mods which should be reserved to administrators); you only give access to your server to users who have a genuine paid for version of Minecraft; you own or control the server and continue to do so for the whole time that you charge for access to it - so, if you sell the actual servers or server space with Mods pre-installed on them, you must ensure that the person buying the server is aware that she must follow these rules. Essentially you can’t get round the rules above by setting up servers with Mods on and then selling those set-ups; and overall your access charges should be targeted to cover your operational costs of running the server. ask for donations (as opposed to direct charges) IF you do not offer the individual donor something in exchange that only he or she can use. You may offer server wide rewards if donation goals are achieved though. sell cosmetic items, except for “Capes”, IF the item sold does not give a user an unfair gameplay advantage over anyone else on the server - i.e there can be no “pay to win”. sell positive effects or enhancements (other than “Capes”) IF everyone on the server is positively affected in exactly the same way. provide in-game advertising opportunities, sponsorships, or product placement for 3rd parties IF they don’t degrade or interfere with gameplay or give a user an unfair gameplay advantage over anyone else on the server. use in-game currencies IF (i) they are “soft currencies” i.e. a currency earned or expended only through gameplay that has no real world value and that cannot be cashed out, used or transferred across free or paid servers, or converted into “credits”; and (ii) you don’t give the impression that it comes from or is associated with Mojang. In all of these cases above YOU MUST also ensure that: all servers, items and advertising are suitable for the target audience (i.e no gambling, pornography etc.) and don’t damage the Brand. you don’t pretend to be us or claim to have any association with us (for example, when selling product placement opportunities); you are explicit about who to contact about the server, who the operator is, and that it is NOT Mojang, NOT associated with Mojang and NOT supported by Mojang; Mojang has no liability for anything on the server or that happens on it, including any advertising, purchases or donations; you provide any user who gives you money an online payment /purchase history you are transparent on informing users with regard to all the content and pricing applicable to your server before a person joins, signs up or logs in; you do not host or distribute malware, spyware, or engage in illegal activity through your server; you comply with all other laws and requirements; and you comply with any other additional requirements applicable under these Guidelines. Now let's take a look at the definition of gambling. https://en.wikipedia.org/wiki/Gambling So let's check if the 3 parts of gambling do exist: 1. consideration (an amount wagered): The amount paid for starting the Slayer Quest -> check, but a) it isn't real money (still carries the idea though) and b) you get it back in the form of drops (sven cost 50k -> stack of woolf tooth worth 700 =>no, not really) so it is maybe ok? 2. risk (chance): chance to get a good drop after a successful boss fight is 100% based on luck -> check 3. prize: a good RNGesus Drop -> also check Same thing with reforging btw. Conclusion: I probably got the consideration part in the definition of gambling wrong, and that's why I now think it is ok with the EULA, but there still is something that tells me that it is not 100% correct. It just feels wrong to implement a casino like game mechanic in a game made for kids. Possible solutions: I am wrong so let's forget about the whole thing I'm partly wrong, but got a point here: If this is actually legal for this reason of 'not being real', I think at least the majority of parents won't be too happy about this. They think it is a nice creative block game for 10 year old kids, not a casino simulator. partly wrong or right; either way remove the 2nd part and everything should be fine. To do that you could a) remove the RNG part (make it so you can earn it through level rewards or/and after a certain ammount of boss kills) and b) remove the risk part, but not the skill part, because that is fine (make it so that others can't hit your boss if you don't want that) Spoiler: More counter points It's not real money Spoiler The EULA doesn't care about real money or not at this point. It cares about not to lead children into gambling. As far as I know any form of gambling is 18+ in many countries. It goes along with alcohol, violence in movies or games and many other things being 18+ as well. Minecraft is a game for kids in the age of 6+ so I doubt that Mojang wants these things in their game or on any server that is reachable through their game. If this is actually legal for this reason of 'not being real', I think at least the majority of parents won't be too happy about this. They think it is a nice creative block game for 10 year old kids, not a casino simulator. RNGesus drops are not the main goal: Spoiler Are they though, when you have come to a certain point, where you only do hundred of tier 4 slayer quests just to get that one RNGesus drop you always get your money back: Spoiler That could be it... but there is still the risk of an 'ender non' to punch the boss into the void and other scenarios which can lead to loosing a fight even with the best gear.