Which of the F2P mobile gacha Fina Fantasy games is considered the best and actually fun day to day?
It's Opera Omnia and with the closure of FFRK and Mobius it's not even close, the others currently going on are far more explitative and have boring mechanics.
Opera Omnia is also very generous, though admittedly the early game is gonna be INSANELY easy and repetitive for a while, so if you would rather skip the first Act and go into the second one and just work through the story and permanent rewards over time, that's totally fine.
It's a weapon gatcha, but you get tons of single pull tickets and multi-pull gems. This early, you can afford to mix their use, but you generally wanna save the Gems to pity rarer parts of a character's kit (BT and FR weapons), and tickets can be best used to play the odds on units you've already gotten built.
You wanna try for the full kit of these characters, and right now I recommend you try for what I consider a good starting team; the Damage, the Support, and the Wildcard.
In the current banners, Cloud is the Damage, doing tons of hits and expected to pull a lot of the weight in damage, with the added utility of inflicting paralysis regularily.
Rosa is the Support, giving passivr damage and general effectiveness bonuses to the team, and providing healing and supportive effects in her kit, with the added bonus of being recently updated to do lots of damage when her full kit is unleashed.
Setzer is a Wildcard, supporting the party with strange and interesting utility that can make or break certain fights, and generally have fun synergy with other characters. He not only regularily delays the turns of enemies with his Red Card, and has three uses of a powerful enemy damage denial move in Freeze Joker, but his EX does unblockable damage, his LD provides an effect to himself and his allies that causes most of their brave hits to do Rainbow Hits (instant max Brv damage possible). Super useful regardless of what fight he's in.
It's gonna take a little bit to get used to the game and how it plays, but when you've got the rhythm down and start having fun maxing out all the characters you come across and making interesting team comps, you will be addicted in the good way, to all the depth of the combat, AND the depth of the characterization.
Seriously speaking, the way they represent and reference things with the characters movesets and how fun and interestingly they can work together Is one thing, but when the story really starts going in Act 2 (if you're an FFXIV Nerd you'll understand the value of a slow burn), it's just banger after banger of extended epilogues and character studies between all the heroes and villains that show up over time.
Ultemecia bonding with Noel over their timeline related woes, Galuf pointedly attacking Golbez's suicidal guilt with words that make me cry to this day, Machina getting the chance to repent and grow from his terrible fate in his home game, Kuja and Vivi exploring their feelings of a short life and the inexcapable death they both had to confront...
There is so many amazing and beautiful moments in the story, and so many great interactions, if this game was sold as a non-gatcha thing, that'd be the first thing people would be praising it for.
So anyways, if you don't have an addictive personality and can successfully avoid the admittedly mostly benign attempts to hustle you, the game makes it much easier then others to simply only spend on the basic mogpass if you just enjoyed the game and wanna support it, then you'll have an excellent time.
However, and I cannot stress this enough,
IT'S STILL A GATCHA.
The best Gatchas are always still, above all else, scummy gambling subliminal messaging machines.
If you have any other choices like classic rpgs or indie titles on the go, that's gonna always be the safer and more fulfilling route.
But if you HAD to play any FF Gatcha, OPERA OMNIA is the best and frankly only option. Nothing compares, from non-sexual fan service, deep writing, inventive gameplay ideas, and genuine non-cheap (most of the time, dang you Lufenian Era) challenge, and most of all, INSANE generosity and huge amounts of freely accessible premium currency locked behind easily accomplished grinding and chaff stage completion.
Play Opera Omnia, and maybe try Ever Crisis until it makes you mad that it expects you to spend 300 dollars to get Dress Cloud to beat the stages in like, Junon Harbor or something. Cause you know just cause it will have all of FFVII at the start, doesn't mean it'll all be doable without a creditcard.
Also, don't buy the costumes, the value is insanely poor and they offer nothing but a different model on your character for the price of a good game on sale. I don't support their price point, if they were like 15-20 bucks that'd be another story, but it's easily ignored outside of going "wow that's a cool costume, anyways..."
Also Also, we have a friendly and helpful ERA OT for the game too, with lovely folks. Feel free to jump in and ask for any help, not sure if the FF Discord here has anyone good with the game, but if you want a buddy to more directly assist, shoot me a DM and I'll help you out.
Remember,
Always Play Responsibly, And NEVER Spend Out Of Obligation.
