Pack Wars

Pack Wars is a strategy game released for the Phillips CD-i and PC in 1994. It was developed by Rise Software under the Lycanthropic Studios moniker to get by their Commodore exclusivity agreement. The game was taken out of circulation after Commodore caught on to the game and threatened to sue Rise for breach of contract, but Commodore's financial issues led to them cancelling the suit.

The game is considered to be a predecessor to the Tank series, also by Lycanthropic.

Gameplay
The game has you pick one of two packs. Your job is to tend to your pack and help the members become stronger, while fighting against the rival pack. The pack gradually evolves into more human-like creatures if you care for them long enough, and you win the game once you take over the entire forest and eradicate the entire rival pack.

You could play against another player who controls the other pack.