Datacards are a valuable collectable in Lego Star Wars: The Skywalker Saga, as you'll need them to redeem cheat codes. The cheats in this game genuinely add to your experience by turning your lightsaber into a baguette or unlocking a rad little Porg to aid you in battle. You'll also need to collect a substantial number of Studs to unlock cheats, but that shouldn't be too difficult as you can earn them by smashing almost everything to bits...
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Lego Star Wars: The Skywalker Saga—Where to find every datacard
Source: PC Gamer (opens in a new tab)