Right after Bandai Namco had a publisher sale on Steam, Warner Bros. Games is taking up the baton and hosting its own promotion. And, no, Mortal Kombat 1 is keeping its full price, but some earlier games in the franchise has some tasty deals. Mortal Kombat 11 is 90% off for regular edition and 85% off for the ultimate edition (includes two Kombat Packs and Aftermath Expansion).
Also, there are discounts for Injustice games: Injustice 2 is 90% off for both regular and legendary editions. First part of the franchise has a discount of only 75%. Both Mortal Kombat 11 and Injustice 2 can be bought in a bundle with 90% price reduction.
If we talk about non-fighting games, Hogwarts Legacy and Gotham Knights have -30% and -75% to their full price respectively. You can check out other games on the sale here.