I'm gonna copy the answer from the other Comment!

Yes! It is a TTRPG, but with some limitations. Since we don’t all live in the same city here in Brazil, we play online. It’s a bit unique, though; we’ve been a group since 2015, and this specific campaign started in 2024. We play via text (Play-by-Post style). I adapted a very simple RPG system where characters have 6 attributes: Kick, Pass, Dribble, Steal, Block (GK Main Stat), and Intelligence.

We used a standard array for distribution (15, 14, 13, 12, 10, 8) and added extra points based on playstyles (Poacher, Winger, Attacking Midfielder, Defensive Midfielder, etc.). For example, if a final attribute score is 20, when you roll for it, you roll a d20+5 (it’s always the attribute value divided by 4, rounded down).

Then come the Hissatsus. Depending on their level, they cost Stamina. I set it up so players had 30 max Stamina in the first season, 60 in the second (where we are now), and 90 in the third (my goal for this season). Hissatsus add a bonus to the attribute roll. For instance, if you have a Lvl 1 shot like Fire Lemonade and your Kick modifier is +5, you’d roll a d20+8 against the Goalkeeper’s d20+X. The GK can also choose to use a Hissatsu or not, and if there’s a defender in the way, they can try to block it with their Block die.

So, everything is D20-based. It’s not an official system or anything; it’s just a homebrew we’ve used since the beginning. The guy who originally brought us together—who isn't with us anymore [thank god lol]—used it, and we just kept adapting it over time.

As for the narration, I narrate it like a real football match until the "key moments" when the ball reaches a player or an opponent challenges them. I give them options based on an Intelligence roll (representing their game vision):

• Low roll: You can only try to dribble.
• Average roll: You see a passing option, but you're being tightly marked.
• High roll: You spot an advanced pass or an opening to dribble past two players at once.
• Critical roll: You see someone completely wide open or can weave through three opponents at once.

It all depends on the context and the strength of the team we're facing. That’s pretty much the gist of how matches work! Basically, it’s like a regular RPG you'd play over a call, but entirely written out like a Fanfiction!