The Bonus Chapter Problem
Most people don't realize Lost Lands 4 Walkthrough Bonus Chapter isn't actually included on the disc or in the standard Steam download. You have to unlock it separately, and even then the triggers are weirdly placed. I spent three hours hunting for it last month because the game silently drops a notification you can miss if you're not looking. Here's how it actually works. Beat the main story through to the credits. Don't skip any side dungeons first — the bonus chapter is gated behind completing the Obsidian Ruins and defeating the Shadow Sovereign on Normal difficulty or harder. The game records this internally but doesn't tell you. After the credits roll, load your save file. There's a new location marked on the map near the starting village, labeled differently than normal points of interest. Go there and interact with the stone monument.
Lost Lands 4 Walkthrough Bonus Chapter
Once you trigger it, you get dropped into a completely separate area with different mechanics. The lighting engine shifts, the enemy AI uses different patterns, and there are puzzle sequences that don't appear anywhere else in the game. It runs about forty-five minutes if you know what you're doing, closer to two hours if you're fumbling through the dark sections without maps. I found the issue where the bonus chapter soft-locks if you collect the Crimson Key before triggering it. The game expects the key to be in your inventory when you interact with the monument, but if you already have it, the trigger fails silently. Nothing appears on screen. I worked around this by saving right before entering the Ruins area, then reloading after beating the Sovereign. The key respawns in the world properly and the monument activates on the next interaction. The bonus chapter has three collectibles that don't count toward the main game completion percentage. They show up in a separate tracker menu. Don't bother speedrunning them — the puzzle logic requires you to learn the environmental interaction system first, which takes about ten minutes of trial and error.
Performance wise, this section hits harder than the rest of the game. I saw frame drops down to thirty on a 3060 Ti when fighting the final wave in the bonus area. Turning off volumetric fog brought it back to sixty without affecting visibility much. The anti-aliasing setting doesn't matter here — keep it at TAA or SMAA, higher settings just burn cycles. Some people report the bonus chapter doesn't appear on New Game Plus. That's true for the first run through NG+. You need to complete a full second playthrough on any difficulty to get it to trigger properly. The developers apparently meant for it to be a post-post-game reward, which explains why so many players miss it entirely. If you want the walkthrough materials, they're not officially published anywhere. The community compiled their own documentation on the Lost Lands wiki, and there's a GitHub repo with item IDs and coordinate data for collectors. I maintain a personal spreadsheet tracking puzzle solutions, but I won't link it here since it's unpolished and occasionally wrong.
Get the Full Details
The chapter can't be replayed unless you start a new save file or use the chapter select menu after finishing it once. No pause-and-resume feature. Plan your session accordingly.
