Here are some of the best fighting games of all time, as of my last knowledge update in September 2021:

Street Fighter series:
This iconic franchise has been a staple in the fighting game genre for decades. Titles like "Street Fighter II," "Street Fighter III," and "Street Fighter IV" are highly regarded.

Mortal Kombat series:
Known for its brutal combat and over-the-top fatalities, Mortal Kombat has been a fan favorite since the early '90s. "Mortal Kombat X" and "Mortal Kombat 11" are notable entries.

Tekken series:
Tekken offers deep gameplay mechanics and a diverse roster of characters. "Tekken 7" is the latest installment and has received critical acclaim.

Super Smash Bros. series:
This unique crossover series brings together characters from various Nintendo franchises and beyond. "Super Smash Bros. Ultimate" on the Nintendo Switch is the most comprehensive entry to date.

Dragon Ball FighterZ:
Based on the popular Dragon Ball anime, this game features fast-paced 3v3 battles and stunning visuals. It's praised for its faithful adaptation of the source material.

Guilty Gear series:
Known for its fast-paced action and complex characters, the Guilty Gear series has a dedicated fan base. "Guilty Gear Strive" is a recent entry with stunning visuals.

Soulcalibur series:
This weapon-based fighter focuses on a diverse roster of characters, each with their own unique fighting styles. "Soulcalibur VI" is the latest in the series.
Shadow Fight 3 Mod APK"
is an action-packed RPG fighting game with modified features, offering unique martial arts battles and customizable characters.