This is Part 8 of the complete Escape Simulator walkthrough, covering the two free crossover DLCs: the Portal DLC (the Portal Escape Chamber) and the Among Us DLC. Every code below is cross-verified across the Steam 100% guide, the Walkthrough Wiki and The Walkthrough King, and the rooms are hand-built and fixed, so the numbers are the same in your game. Nothing is invented; the embedded videos show the laser routing and robot programming fastest.
Portal DLC — Portal Escape Chamber
This is the official Portal crossover — a single sprawling Aperture-style test chamber complete with a snarky AI, companion cubes, lasers and a portal gun you rebuild piece by piece. The clever conceit is that the puzzles teach the same things Portal did: thinking in terms of lasers and mirrors, pressure plates, and turning “junk” into tools. The one genuinely numeric puzzle is a lovely bit of pseudo-science: fruit used as batteries, each with its own voltage (a real classroom demo — a lemon really can drive a small current), and you add two of them to get a lock code.
Room 1 — the projector
Take the projector roll from the middle drawer of the corner desk, load it into the projector and hit power. Lift the projector screen to expose six buttons, then rotate the roll so the projected image runs from bottom-left up to top-right. Now press the buttons in the order the arrow traces: 4, 1, 3, 2. The door opens.
Before leaving, use the corner terminal: enter the “solvable?” code as 0110 (top row) and 0101 (bottom row), where each digit answers whether one of the eight clipboard mini-puzzles can be solved. Also select Drop Parts on this terminal — it dumps a personality core you'll loot for a battery — and Open Retina Scanner later.
Room 2 — fruit batteries and the pressure-plate tests
Step on a plate to start the pressure-plate tests. Test 1 simply matches the symbol shown; Test 2 asks whether the on-screen player can safely finish — answer by stepping on the correct plate. Searching the dispensed “rat food” nets a lemon, an orange, a lime, a banana and a potato.
Plug each fruit into the testing device on the corner desk to read its voltage: lemon = 100, lime = 300, banana = 330, orange = 340. The desk padlock wants banana + orange = 670. Open it for a USB, plug it into the corner device, and use the Security Camera Feed — note the three infra-red numbers 08, 26, 34 and pause on the falling cube to read the corner symbols, which you then recreate on the far-wall marker grid. That unlocks the wall gear: engage gears A,B,D,E then A,B,D then A,B, rotating each time to line up the vent tubes.
In the small glass room, enter the infra-red numbers as 26, 34, 08 for the LED array, and tune the radio so its blue wave matches the orange one. The printer's test-results sheet feeds the third pressure-plate test, which rewards portal-gun core 1 of 2. Spring and reset the giant mouse trap (via the desk computer) to grab the ocular piston.
Build the personality core: mount it on the wall station and feed it the LED array, ocular piston, gyrometer (from a floor core), CPU (second-room desk drawer) and two batteries (one from the debris core in the tubes, one from the “Drop Parts” core). Use the computer's Open Retina Scanner, plug the finished core into the door reader, and enter Room 3.
Room 3 — lasers, towers and the portal gun
Put the companion cube on the pressure plate and rotate the mirror to send the laser to the circle sensor; pull the revealed lever for the tower controls. Raise the right tower half-way, deflect the vertical laser into the controls, raise it fully to hit the dot sensor, then angle the two mirrors into the triangle sensor for the elevator. Swap in the holed storage cube, route the laser through it to the moon sensor, and ride up for portal-gun core 2 of 2. Back in Room 2, choose Raise Central Platform and slot both cores into the gun to open the exit portal.
8 tokens: on the large “01” sign in the start room; straight up the central ventilation tube; in the small orange lights left of the Room 2 door; on the glass floor of the rotating wheel; inside a figurine in the Room 2 desk's bottom drawer (press its red button); behind a corner panel in Room 3 (a hidden room — look under the pillow); direct a laser to the cake chamber, then take and bite a slice; and direct lasers to the triangle and moon sensors to open the matching cabinet.
Among Us DLC
The Innersloth crossover drops you into a sabotaged spaceship of little bean crewmates. It is the most “sci-fi maintenance” room in the game: you reroute a cipher override, align an orrery of orbiting planets, repair circuits, program a little robot through a maze, and reconstruct an alien family tree using simple genetics. Several steps have a separate co-op layout; the spine below is the solo route.
Navigation
Collect four keys (captain's chair, left vertical cupboard, right low drawer, a floor panel) and read the cipher-override notepad. Slide open the panel under the CIPHER OFFLINE sign and place keys in the highlighted locks to enter the override. Put the course log into the right console, press Download Data, then plot the five planets on the course terminal as the chart directs and press Check Course.
Work out the cipher-terminal code and enter 3632 on the Orrery keypad, then move all three planets to the right side. Pull the two red handles to drop the wayfinder; the central console reports “Nav System Sabotage,” so first use the left console to draw a line through every red point. Now match planets by bearing: at bearing 300 enter ID 10992, at 225 enter 38066, at 45 enter 21482. Swipe the storage access card to open Storage.
Storage
Pull the two power handles, then use the alpha and beta circuit testers to learn which button pairs light which segments, and recreate those segments on the two displays. Clear the ventilation shaft (hold the handle until it reads “Ventilation Clear”), grab Ro-Bot, and pull the central-platform handle to spawn the cargo. Read the Top Cargo View layout, which reveals the code 2148 for the orange cargo box; take the battery inside, fit it to Ro-Bot, drop him into the hatch, and program his moves to roll over every red dot in the maze.
Specimen Room & Cafeteria
Swipe the specimen-room card (answer N, click the squares, swipe again) to get in. Gather every specimen and complete the family tree by mixing parents' skin colour, eye shape and antenna into each child — a tidy little genetics lesson. Pull the lever to confirm, read the genetic code 2R95TQ, enter it, break the glass and take the reactor key; press both hand panels and insert it to open the Cafeteria. There, find four keys (tray cupboard, crew lockers, pizza box, and the vending machine using a square number — code 049), insert all four and hit the emergency button to escape.
8 tokens: in the vending machine via code 081 (another square number); in the tracks under the navigation chair (press both chair buttons); behind the panel by the navigation timer (use the plunger); on the crate-like spaceship seen out the Storage window; inside the unblocked ventilation shaft; inside the UFO toy on the specimen-room table; on the back of the specimen-room security camera; and on the antenna of a green specimen with a cube antenna.
Frequently asked questions
Are the Portal and Among Us DLCs free?
Yes — both were added to Escape Simulator as free crossover DLC. You only need the base game.
What is the fruit padlock code in the Portal room?
Plug each fruit into the tester to read its voltage (lemon 100, lime 300, banana 330, orange 340); the padlock is banana + orange = 670.
How do I build the personality core?
Mount the core on the wall station and add the LED array, ocular piston, gyrometer, CPU and two batteries, gathered from the floor core, the drawers, the tube debris and the “Drop Parts” core. Then use Open Retina Scanner and plug it into the door reader.
What is the Among Us genetic code?
Complete the specimen family tree by mixing each child's traits from its parents; the display then shows 2R95TQ, which you enter to get the reactor key.
What are the Orrery and cargo codes?
The Orrery keypad is 3632 (from the cipher terminal), and the orange cargo box is 2148 (from the Top Cargo View). The navigation planet IDs are 10992, 38066 and 21482 at bearings 300, 225 and 45.
Can I do these DLCs solo?
Yes. A few Among Us steps have a co-op variant, but everything is solvable alone — do the “hold-and-act” steps in sequence.
Next: Part 9 — Magic DLC. You can find the game on its official Steam page.