I'm going to talk about the game as it is at this moment. Surprisingly, it is still playable in Offline Mode*. When Epic announced the various Harmonix server shutdowns, it said it wouldn't be playable anymore. Playing in Offline Mode guts the experience of the game. The main features of the game you can't use in Offline Mode: powerups and score saving. I'm really baffled why these things wouldn't be usable (especially score saving) in Offline Mode. When the game was fully playable, you would earn a currency for playing songs and you would have to spend that currency to use powerups. You might be asking if you could purchase the currency with real money, but no, you could not. It sounds like some sort of F2P scheme. So, it's not like you would be upending some in-game economy or source of revenue. While it is easy to blame Epic for the shutdown of the servers, as an avid Rock Band player I haven't been able to connect to the Rock Band Blitz servers for the past 2-3 years. I've only been playing the game in Offline Mode for a long time. This hasn't really affected my gameplay experience in recent memory. There's plenty of evidence on Reddit and whatnot that I'm not the only one as well.
Despite, ALL OF THAT, there's still something neat here. The checkpoint nature of the game gives it a much different flavor compared to similar Harmonix games like Amplitude. I have spent an embarrassing amount of money on Rock Band songs and being able to play almost all pre-RB4 songs in a different kind of game is wild. Really impressive work on however they translated the standard Rock Band tracks to this. The generative nature of it does create some sour spots, but it mostly works. Only having two tracks makes the beat matching less engaging on a whole and without powerups it is a bit plain and it ruins the scoring ranks. You're looking for a high 4-Star rank (very rarely, you can break the 5-Star threshold) instead of 5-Star and Gold Stars. There is nothing to do in this game besides play the songs. It is not contextualized in any way. Luckily, I like playing the songs.
*You still need an internet connection to Xbox Live to access Offline Mode.
Despite, ALL OF THAT, there's still something neat here. The checkpoint nature of the game gives it a much different flavor compared to similar Harmonix games like Amplitude. I have spent an embarrassing amount of money on Rock Band songs and being able to play almost all pre-RB4 songs in a different kind of game is wild. Really impressive work on however they translated the standard Rock Band tracks to this. The generative nature of it does create some sour spots, but it mostly works. Only having two tracks makes the beat matching less engaging on a whole and without powerups it is a bit plain and it ruins the scoring ranks. You're looking for a high 4-Star rank (very rarely, you can break the 5-Star threshold) instead of 5-Star and Gold Stars. There is nothing to do in this game besides play the songs. It is not contextualized in any way. Luckily, I like playing the songs.
*You still need an internet connection to Xbox Live to access Offline Mode.