Enter the deep sites and learn the goo routes
Chapter 3 replaces the museum's familiar displays with industrial caverns, goo traversal, and the Allosaurus. This Terrible Lizards chapter 3 walkthrough follows the main progression checkpoints from the flooded opening to the Motherlode. It explains how the machinery objectives connect, while leaving unverified individual fuse locations out of the route.
The route is based on FusionZGamer's full-release player experience. The official Terrible Lizards Steam page provides the full-game listing.
After the Chapter 2 explosion, follow the water and filtration-area route, then contact Stella. Jordan describes a mining operation, and she identifies it as the deep sites. Continue using the repositionable equipment to create a path through the area.
The next major traversal tool is the goo bounce. Look for the outstretched goo surfaces that send Jordan toward the next landing. Later examples have a limited activation window after a button press, so inspect the landing and onward route before starting. Chapter 3 also combines these bounces with wall-running and climbing.
Follow the working route through the machinery rather than copying the recording's improvised shortcuts. The player's occasional accidental skips are not required puzzle solutions.
Use the cart and dynamite to restore the train controls
At the large mining site, Stella discusses the carts and their metal canisters. The immediate route forward depends on the equipment and power system in this area.
Complete the cart interaction to reach the dynamite. Jordan explicitly identifies the explosive as accessible after the cart moves. Take it to the obstruction where the power cable leads through, place it, and use the detonator.
Continue through the opened route and restore the power. Then return to the train-cart control panel and activate it. The useful order is:
- Move the cart to reach the dynamite.
- Blast the obstruction along the power-cable route.
- Restore power beyond the opening.
- Activate the train-cart control panel.
Follow the traversal route that this opens. Expect more goo-assisted movement, including angled bounces, rather than treating every gap as an ordinary jump.
Get through the Allosaurus and rising-water sequences
The Allosaurus encounters shift the emphasis from solving machinery to reaching the next escape opening. A written account read during the release player experience says the creature prefers attacking from behind. The account also describes staring it down: it stops briefly, then becomes angry, creating a moment to get away.
That is a brief hesitation window, not a promise that facing the dinosaur freezes it indefinitely. Use any breathing room to continue toward the escape path. The recorded route repeatedly uses narrow cracks and passages to get beyond the creature's reach.
Continue through the subsequent water sequence. The rising water pushes the route upward, with goo bounces and climbing carrying Jordan onward. Identify each next support before committing to a jump so you can keep progressing rather than dropping back toward the flood.
The narrator's jokes about the dinosaur teleporting do not establish an AI rule or a hidden tunnel mechanic. For this route, the practical objective remains reaching the next usable passage while surviving the pursuit.
Restore the scissor lift and attempt the winch lift
In the larger equipment area, obtain the key and follow the objective toward the lift platform. The scissor-lift stage also needs a dynamite placement and restored power. Complete that work before expecting the equipment to carry you onward.
Use the powered scissor lift, surrounding machinery, and goo surfaces to continue climbing. The route eventually reaches the tall cavern with the winch lift, which Stella recognizes as a way toward the surface.
Take the lift when instructed. Its escape attempt is interrupted, so reaching it does not finish Chapter 3. Continue along the available route after that event instead of returning to redo the scissor-lift power job.
Farther on, Jordan finds Dalton's final camcorder. Watch the recording and contact Stella to report what happened. This is a story checkpoint on the way to the next cavern, not the chapter's exit.
Finish the railway cavern and escape into the Motherlode
In the railway cavern, follow the objective to find a generator and restore power. The release player experience uses a large power cable as an initial clue to the machinery route. After restoring power, the next required objective is to find and replace four fuses.
The recording confirms this four-fuse stage and includes a shed-key interaction during the search, but its narration does not clearly locate all four pickups. This is therefore a progression checkpoint rather than a four-fuse location map. Use the active objective to track the task; this guide does not assign invented compass directions or coordinates to the narrator's references to nearby platforms.
Once the fuse objective is complete, continue through the newly available route. The next specific machinery goal is to find a way into the Foreman's Tower and release the mine cart. Complete the tower-control sequence, then move onward into the final Allosaurus pursuit.
Keep following the climbing, wall-running, and goo-bounce escape route. Reaching the goo-filled Motherlode area marks the transition out of Chapter 3 and into the final chapter.
FAQ
What opens the train-cart control route?
Use the cart to reach dynamite, blast the obstruction along the power cable, restore power, and activate the train-cart control panel. These are successive parts of the same progression sequence.
Can staring at the Allosaurus keep it still?
The in-game account describes only a brief hesitation before it gets angry. Use that moment to escape; the material does not establish a permanent freeze or a guaranteed duration.
Does the winch lift end Chapter 3?
No. The attempted ascent is interrupted. Continue through the following route, Dalton's camcorder checkpoint, and railway-cavern objectives.
Does this walkthrough show all four fuse locations?
No. It identifies the required four-fuse stage and its place in the main route. The release narration does not clearly locate every pickup, so a complete location map would exceed what it supports.