Rusty Lake The Past Within Walkthrough

How The Past Within Actually Works

The game splits into two separate screens. You and a partner each pick a timeline — one plays as the Pale Man in 1852, the other as Rose in 1971. Your puzzles are interdependent. What you find in one era changes what's possible in the other. You communicate through an in-game radio. If your partner isn't paying attention, you're stuck. This isn't a subtlety the game makes clear early on. I ran into a specific problem during the blacksmith sequence. The future player had the blueprint fragment, but the past player couldn't read it because the angle of the sun in the workshop shifted based on when you interacted with the sundial. I spent about twenty minutes backtracking because I kept opening the blueprint at the wrong in-game hour. The workaround was to have the future player note the exact timestamp displayed on the grandfather clock near their workbench, then the past player set the sundial shadow to match that time before opening the item. Without matching the hours, the text remains illegible and the puzzle dead-ends.

Rusty Lake The Past Within Walkthrough

Here's how to actually get through the notable roadblocks without wasting hours: The root cellar staircase puzzle — The past player arranges the books on the shelf based on clues found by the future player. The future player needs to locate the journal in the abandoned house, read the passage about the five family members, and relay the correct order. Don't rush this. The journal is easy to miss because it's under a loose floorboard, not on a surface. The past player should place books left to right in the order: mother, father, eldest son, daughter, youngest son. Getting this wrong locks the cellar for the rest of the session. The radio tuning mechanic — Both players need to hit the exact same frequency simultaneously. There's a three-second window. Practice the timing. Hold the interact button on count of three, release on four. It sounds simple but under pressure people fumble it. Having a voice chat outside the game helps more than you'd think.

The well rope puzzle — The past player attaches the rope to the well bucket. The future player must lower it to the correct water level, which corresponds to the date carved into the wooden beam above the well. That date is only visible if you examine the beam closely. I initially missed it because the carving is faint and blends into the wood grain. The future player needs to climb down and retrieve an item from the bottom — if the rope isn't tied correctly, it slips and you lose the item entirely, forcing a reload. The painting sequence — This is where most sessions break down. The past player finds colored pigments scattered around the estate. The future player has a canvas with an outline. You need to mix pigments according to a recipe hidden in a letter. The letter is in the past player's timeline, but the mixed paint only appears on the future player's canvas. Communicate the color names and ratios out loud. Writing them down in a separate doc doesn't help because by the time you type it, the paint dries and becomes unusable. For anyone looking to play this, you can find it on Steam or the Rusty Lake store page. It requires a second person — there is no solo mode. You can play as either role, but both roles must be filled for the game to proceed.

The game runs on a checkpoint system rather than traditional saves. You lose progress back to the last radio contact point. This means if you argue with your partner and one of you leaves the game, you both restart from that point. I've lost roughly forty minutes of progress this way. It's frustrating but not game-breaking if you treat each checkpoint as a natural stopping point and use it to discuss what's next. One thing nobody mentions: the ambient sound design is intentionally disorienting. Footsteps you hear might be your partner's or yours — the audio doesn't differentiate clearly. This is a feature, not a bug, but it will make you second-guess yourself constantly. Lean into it. Call out what you hear. The game rewards players who verify before acting rather than assuming they know who made a noise. If you're new to Rusty Lake, expect the puzzles to feel arbitrary at first. They're designed to be abstract. The logic is always there but rarely spelled out. Trial and error is the intended path. Don't overthink — experiment, communicate, and move on.