No, not Tatsunoko vs. Capcom, but the PS1 game by Takara (who co-owns Tatsunoko). It is being distributed/published by ex-Gremlin Interactive owner Ian Stewart’s new company called “Console Classics”. Their first PS1->PC release is N2O: Nitrous Oxide and other titles in the pipeline include Koudelka and Battle Arena Toshinden 2.
Here is a link to their Tatsunoko Fight page-
Hmm, don’t recall that one being particularly good, but more fighters on Steam is always a good thing in my book!