Unlocking the "Inventing the Past" quest in The Sims 4's Blast from the Past event requires locating Plathinum and Ironyum. Fortunately, this is a straightforward process.

This guide explains how to quickly find these resources:

To obtain Plathinum and Ironyum, simply locate areas with rocks and dirt mounds – parks are ideal. Pause the game to thoroughly scan the area. Once you spot a suitable mound, dig it up. It may take a few attempts, but you'll eventually unearth both Plathinum and Ironyum, unlocking the next quest stage: building the Time Travel Component.

If you're struggling to find dig spots, speeding up in-game time can help generate more rocks and mounds. However, avoid prolonged periods of sped-up time to prevent missing opportunities to dig.

Blast from the Past Event Rewards:

The Blast from the Past event offers a range of rewards across four weeks. Here's a summary:

• Week 1: Retro Deco Phone Set, Relevart Time Walkers, The Yesterday Set floor tiles, The Future’s So Bright “Sun” Glasses, The Fun-Fun Inflatable Set, Part One
• Week 2: Get Up! Alarm Clock, Be “The Emit” outfit, Bigger Gatherings Banquet, The Relevart Neck Stabilizer bow tie
• Week 3: The Fun-Fun Inflatable Set, Part Two, Dina Caliente’s LBD, New Retro Station Songs, Sticky Fingers aspiration
• Week 4: Surprise Birthday Cake, The ElectroDance Floor

While the event has a set duration, The Sims 4 has extended the event timeframe, providing additional time to complete the challenges.

This concludes our guide on obtaining Plathinum and Ironyum in The Sims 4's Blast from the Past event. For future updates and event information, refer to the 2025 roadmap.

The Sims 4 is currently available on PlayStation, Xbox, and PC.