She is motivated not only by adrenaline but also empathy with other characters and a conflicted relationship with her father. Although this continues into modern games, Lara is now a more vulnerable and believable person in her own right. This combination of exploration, puzzles and combat (along with an attractive powerful female protagonist) is what the game was originally known for. She shoots, runs, jumps and fights her way to tombs that offer a calmer puzzle challenge. All the games feature Lara Croft as the titular hero. This means it not only gets a fresh coat of paint like a re-release but is built from the ground up.
Tomb Raider is a longstanding series that has been rebooted in recent years.