Injustice 2 Legendary Edition is the full DC Comics fighting game for PC on Steam. It includes the base game Injustice 2 and all major content packs/characters such as Hellboy, Sub-Zero, Raiden, Enchantress, Red Hood, Atom, Teenage Mutant Ninja Turtles, Starfire, Black Manta, Darkseid and more, plus extra skins and gear enhancements — giving you the complete experience with expanded character roster and custom gear systems.
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Key Features:

Epic story campaign with DC heroes vs. villains

All released DLC fighters and bonus content included

Custom gear & skins for character enhancement

Competitive online modes and challenges

Works on Steam globally (no region restriction)
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🔑 How to Redeem the Steam Key (English)

Install & open Steam:
Download and install the Steam client if you haven’t: https://store.steampowered.com/

Sign in:
Log into your Steam account (or create one).

Activate the key:
In the top menu, click Games → Activate a Product on Steam…

Enter the key:
Paste your Injustice 2 – Legendary Edition key and confirm.

Download the game:
After activation, the game will appear in your Library — click “Install” and start playing!