Tell Me Why 100% guide

Tell Me Why has 30 Xbox achievements worth 1,500 Gamerscore across the shared Xbox One, Xbox Series X|S, and Windows Xbox Play Anywhere list. Chapter 1 contains 10 achievements for 500G, Chapter 2 contains 10 for 500G, and Chapter 3 contains 10 for 500G. Xbox lists Chapter 1 as the base game and Chapters 2 and 3 as add-on packs, so make sure all three chapters are installed.

As verified on 2026-09-15, all 30 achievements are obtainable. There are no CURRENTLY CONFIRMED UNOBTAINABLE or CURRENTLY CONFIRMED DISCONTINUED achievements. Everything is single-player and can be earned without co-op or multiplayer. There are no difficulty-related achievements.

The safest practical route is two story passes. On the first pass, make the bond-strengthening choices in this guide, collect all 13 Book of Goblins figures, earn every miscellaneous achievement, solve the attic puzzles, and set up Tyler's epilogue. On the second pass, use Restart Progress from Chapter 1 and make the bond-weakening choices plus the Alyson-epilogue choices. Skip cutscenes and already-completed optional interactions to make the second run much faster.

The epilogue and the twin bond are two separate systems. Which twin's epilogue you get is decided by two Chapter 3 choices. Tyler's epilogue happens if you tell Eddy the truth in Paternity Test OR believe Tom's memory at the dock in Veni, Vidi, Vecchi. Alyson's epilogue needs both: you do not tell Eddy AND you stick to the twins' memory. No other choice, including the panic-attack breathing exercise, affects the epilogue. The bond achievements depend on the running tally of bond-marked consequences across all three chapters. These are the consequences shown with a star icon (whole or broken) on each chapter's consequence screen in the Chapters menu, and that screen is the place to check your bond progress. Either epilogue can occur with either bond state; this guide pairs Tyler with the strong bond and Alyson with the weak bond only so that two runs cover all four achievements.

Nothing outside the ending and bond outcomes is permanently missable because scene replay is available. From the main menu, Chapters → Replay → Replay in isolation mode lets you clean up miscellaneous achievements and collectibles without replacing your story choices. For alternate endings or bond changes, use Restart progress from this scene instead. Isolation mode does not carry your changed choices into later scenes.

As Alyson, look under the bed and take the box to obtain her half of The Crafty Goblins. When control switches to Tyler, take the matching goblin from his desk. Together these form collectible 1/13.

Continue until Tyler leaves Fireweed Residential Center.

For the strong-bond first run, accept Eddy's ring when Alyson gives it to Tyler. This is one of the documented bond consequences and strengthens the twins' relationship.

Continue to the Ronan property.

Before entering the house, clear the two easy optional achievements outside.

When the twins compare their memories of Tessa's argument with Mary-Ann, choose Tyler's memory for the strong-bond route.

Do not finish the Tessa confrontation until you have gathered the evidence needed for the full confession.

Follow the story inside the station. After getting access to the break room, make the coffee and view the memories in the break room and the interrogation room about the twins' childhood statement.

Finish the remaining Chapter 1 story scenes.

During the house-cleaning sequence, several achievements and one collectible are available before the story moves on.

During the realtor phone call, refuse the immediate house showing. This is the strong-bond consequence for this scene.

Continue along the story route until the twins revisit the old tree and can correct its graffiti.

At the police station, search Eddy's desk drawer before leaving his office area and take The Stalwart Moose, collectible 7/13.

Continue until you reach the archive room. The door code is 6041.

In the store's back room, pick up The Mangy Muskrat near the storage area by the refrigerator and plush stock. This is collectible 8/13.

Before starting the plushie battle, inspect all three classic posters in the storage room: the poster on the wall behind Michael, the panda poster, and the wine-glass Red Queen poster at the far side of the room.

At the cemetery, the totem memory comes first: choose Alyson's memory for the strong-bond route. Then take the path to the area with Carol Brown's grave. Look behind the gravestone and collect The Very Old Beaver, collectible 9/13.

Continue to Mary-Ann's resting place and finish the cemetery scene with Tessa.

After the barn fire is extinguished and you can search the burned structure, enter the small side room where the earlier tool was found. Pick up The Moon Hag from the open shelf for collectible 10/13.

At the dock memory later in this scene, choose Just one more time for the strong-bond route.

Continue through the remaining investigation. No additional achievement-specific detour is required here.

Finish Chapter 2.

As Alyson, enter Eddy's bedroom and inspect the locked coin-operated box on the shelf first. Then go to the living room, take the coin beside Alyson's wallet, and return to the box. Insert the coin and collect The Secret Keeper, collectible 11/13.

When Michael visits, tell him about the memories and choose That could work when he offers to go to Tyler. This strengthens the bond.

Continue the story until the police-station lunch sequence.

The phone breathing exercise during the panic attack is not a choice; complete it however you like. Later, when speaking with Eddy, choose That's not true, then I killed Mary-Ann. Telling Eddy the truth sets up Tyler's epilogue and is counted as a positive choice.

At the police station, after dropping off the file upstairs, go to the break room. During lunch, keep watching Dee outside. When the prompt changes from looking to eavesdropping, listen to her conversation. When she later asks you to guess the identity of the Mailbox Bandit, answer An animal?.

At Sam's workshop, keep talking until he returns to the engine and mentions the problem. Open the cabinet by the sink, take the red can of penetrating or rust oil, and give it to Sam.

During the fishing trip with Michael, watch the rod even while dialogue is playing. There are three fishing opportunities. Michael's conversation about Alyson happens after the second fish, and the third bite follows it, so keep watching the rod during that conversation. Respond to every bite, keep the line in the indicated sweet spot, and reel each fish in successfully.

This is the major Chapter 3 cleanup point. You should arrive with 12/13 collectibles. Do not force the central chest and do not enter its code early on the first run; solving the three main wall puzzles is required for the achievement and also strengthens the twins' bond.

Solve the first wall mural by selecting its five differences from the Book of Goblins illustration. Four of them are the title, the princess in the trees, the Mad Hunter's hand, and the castle. The fifth is the lowest tree, where the goblins are missing. The hidden compartment opens and contains The Gold Lady, collectible 13/13.

With all 13 figures now collected, place every figure on the display pedestals around the central chest before leaving the loft.

Continue to the final confrontation. For the Tyler epilogue, choose Believe Tom's version: Mary-Ann did not threaten Tyler.

Believing Tom guarantees Tyler's epilogue whatever you told Eddy. It also weakens the bond, but the strengthening choices made earlier in this run leave plenty of margin for Twins4life.

You should now be controlling Tyler at the Ronan house. After the phone call with Alyson, interact with and take the laptop beside the couch, pick up the pictures from the kitchen counter, then use the front door and choose LEAVE THE HOUSE FOR GOOD.

From the main menu, use Chapters → Replay → Restart progress from this scene and restart from The Crossing or earlier. Do not use Isolation mode.

Skip cutscenes and ignore collectibles and miscellaneous achievements you already have. Make every documented bond consequence negative:

• In The Crossing, refuse Eddy's ring or throw it into the water.
• In A Big Wooden House, break open Mary-Ann's bedroom door instead of solving the Moose, Bear, Pelican puzzle.
• In Rashomon, choose Alyson's memory.
• In To Serve and Protect, side with Eddy ("he did his best").

Continue through the end of Chapter 1 so those choices become the active story state.

Continue the restarted story and make every Chapter 2 bond consequence negative:

• In Ahoy Goblins!, choose Alyson's memory at the barn.
• In Compass and Northstar, accept the immediate house showing ("Let's do it") during the realtor call.
• In Cold Case, choose Are you kidding me at the start of the Eddy confrontation, then No, it's not that easy when he offers to make it up to you.
• In Plushy Fight!, choose You're swell too while sitting and talking with Michael on the sofa after the battle.
• In Last Rites, choose Tyler's memory at the cemetery totem.
• In Scorched Earth, choose Even after what I did for you at the dock memory.

You can skip every collectible and optional achievement interaction already completed on the first run.

Continue into Chapter 3 and set up the opposite epilogue while keeping the bond weak.

In Like Mother, Like Daughter, when Michael visits, choose It won't do any good.

In Paternity Test, the phone breathing exercise is not a choice. When speaking with Eddy, choose I wanna forget, then I can't move on, so you do not tell him that Alyson killed Mary-Ann. This is required for Alyson's epilogue.

In Chosen Family, tell Michael We're too different, then I was the kid who killed his mom.

In Princess and Tiara, do not solve the three main attic puzzles again. Leave the loft through the hatch, pick up the crowbar on the burned barn floor next to the burned area, return to the loft, and force the central chest open. Choose the dialogue options to go ahead with breaking it. This is the documented bond-weakening consequence for the loft. And Everything In Its Place should already be done from the first run; do not rely on placing figures on this run.

In Veni, Vidi, Vecchi, choose Stick to your memory: Mary-Ann threatened Tyler. Alyson's epilogue requires both this choice and not telling Eddy the truth. Sticking to the twins' memory strengthens the bond, but the weakening choices made earlier in this run leave plenty of margin for Life Tears Us Apart.

In the epilogue, you should now control Alyson at the Ronan house. Go into Mary-Ann's old room, sit at the desk, and choose to finish or write the new chapter.