Twilight of the Republic

Unlockables

The Toy Store has loads of toys listed with the vague description "Unlock this toy in the Twilight of the Republic Play Set" which is not all that helpful. This page hopes to clear up the confusion surrounding the location of the unlocks in the Twilight of the Republic Play Set. I'll also detail where each of the pieces of Concept Art are unlocked.

There is a glitch that sometimes means that toys that should be unlocked just by placing the Play Set piece on the Base are still locked even though other toys of the same nature are clearly unlocked. Try placing the piece on the base again while in a Toy Box and see if that unlocks them. If you're on PC and own the Play Set but still have items locked that should otherwise be unlocked I would suggest contacting support.

First the toys, I will organise these by their position in the Toy Store:

Set Pieces and Building Sets > Building Sets 5 - Page 2
Tatooine Marketplace 1 Tatooine Marketplace 1
Complete the first star of the Tatooine mission "The Mighty Sarlaac".
Contains: Tatooine Gate Tatooine Building A Tatooine Building D
Anakin's Garage Anakin's Garage
Complete the first star of the Tatooine mission "Just Deserts". (note that this is listed as part of the Tatooine Marketplace 1 pack for some reason)
Tatooine Marketplace 2 Tatooine Marketplace 2
Complete the Tatooine mission "Hutt Hideaway".
Contains: Tatooine Arched Wall Tatooine Building B Tatooine Building C Tatooine Straight Market Archway Tatooine Corner Market Archway
Tatooine Tusken Raider Huts Tatooine Tusken Raider Huts
Earn the feat "Sarlacc Snack" which requires you to throw another player into the Sarlaac.
Contains: Tusken Raider Hut B Tusken Raider Hut A
Tatooine Walls Tatooine Walls
Complete the Tatooine mission "Jabber with Jabba".
Contains: Tatooine Straight Wall D Tatooine Straight Wall A Tatooine Straight Wall C Tatooine Straight Wall B Tatooine Corner Wall
Mos Espa Antenna Mos Espa Antenna
Complete the first star of the Tatooine mission "Antenna Bender".
Geonosis Arena Pieces Geonosis Arena Pieces
Complete the Geonosis mission "Assault on Geonosis".
Contains: Geonosis Arena Curve Geonosis Arena Gate 1 Geonosis Arena Gate 2 Geonosis Arena Outer Curve Straight Geonosis Arena Piece
Droid Factory Parts 1 Droid Factory Parts 1
Complete the first star of the Geonosis mission "The Droid You're Looking For".
Contains: Droid Factory Pillar 1 Droid Factory Pillar 2 Droid Factory Pillar 3 Droid Factory Pillar 4
Droid Factory Parts 2 Droid Factory Parts 2
Unlock with the Play Set Piece and buy for 250 Sparks.
Contains: Droid Factory Pillar 5 Droid Factory Pillar 6 Droid Factory Pillar 7 Droid Factory Pillar 8 Droid Factory Pillar 9
Droid Factory Parts 3 Droid Factory Parts 3
Unlock with the Play Set Piece and buy for 250 Sparks.
Contains: Droid Factory Pillar 10 Droid Factory Pillar 11 Droid Factory Pillar 12 Droid Factory Pillar 13 Droid Factory Pillar 14
Coruscant Buildings Coruscant Buildings
Complete the first star of the Coruscant mission "Real Bombad".
Contains: Coruscant Building A Coruscant Building B Coruscant Building C Coruscant Building D Coruscant Building E
Dex's Diner Dex's Diner
Earn the feat "Dining and Driving" which requires you to do all eight of the purple missions for Jay Igno and Dexter Jettser on Coruscant (four each, they repeat).
Coruscant Library Coruscant Library
Earn the feat "Finder of Wisdom" which requires you to gather all 15 holocrons.
Coruscant Jedi Temple Coruscant Jedi Temple
Earn the feat "Jedi Recruiter" which requires you to complete all of Youngling recruitment missions.
Horseplay Toys > Star Wars Critters
Baby Falumpaset Baby Falumpaset
Unlock with the Play Set Piece and buy for 250 Sparks.
Borcatu Borcatu
Unlock with the Play Set Piece and buy for 250 Sparks.
Baby Nexu Baby Nexu
Unlock with the Play Set Piece and buy for 250 Sparks.
Gizka Gizka
Unlock with the Play Set Piece and buy for 250 Sparks.
Baby Orray Baby Orray
Unlock with the Play Set Piece and buy for 250 Sparks.
Derbit Derbit
Complete Dexter Jettser's Coruscant side-mission called "Pet Shop Panic".
Mooka Mooka
Unlock with the Play Set Piece and buy for 250 Sparks.
Nuna Nuna
Complete the time limit star of the Naboo mission "Buckle Up".
Shiro Shiro
Unlock with the Play Set Piece and buy for 250 Sparks.
Tooka Tooka
Complete the Coruscant mission "Tookas Come Home".
Voorpak Voorpak
Complete the first star of the Coruscant mission "Wild Bantha Chase".
Horseplay Toys > Star Wars Cast Members
Padme Amidala Padme Amidala
Complete the first star of the Naboo mission "Duel of the Fates".
Jar Jar Binks Jar Jar Binks
Complete the first star of the Naboo mission "Binks In A Pinch".
Aayla Secura Aayla Secura
Complete the "knock 5 enemies off an edge" star of Coruscant mission "Landing Zone Liberation".
Mace Windu Mace Windu
Earn the feat "Champion of the Galactic Republic" which requires you to every single mission star in the Twilight of the Republic Play Set.
Plo Koon Plo Koon
Unlock with the Play Set Piece and buy for 1000 Sparks.
TD-54 TD-54
Complete the Coruscant mission "The Wisdom of the Council".
Horseplay Toys > Sidekicks > Sidekicks 5
Capo Sidekick Capo Sidekick
Complete the Geonosis mission "Youngling Capo".
Hodo Sidekick Hodo Sidekick
Complete the Coruscant mission "Youngling Hodo".
Tril Sidekick Tril Sidekick
Complete the Naboo mission "Youngling Tril".
Kron Sidekick Kron Sidekick
Complete the Tatooine mission "Youngling Kron".
Tuz Sidekick Tuz Sidekick
Complete the Coruscant mission "Youngling Tuz".
Garr Sidekick Garr Sidekick
Complete the Geonosis mission "Youngling Garr".
Meli Sidekick Meli Sidekick
Complete the Naboo mission "Youngling Meli".
Rikoo Sidekick Rikoo Sidekick
Complete the Geonosis mission "Youngling Rikoo".
Jama Sidekick Jama Sidekick
Complete the Tatooine mission "Youngling Jama".
Vurluha Sidekick Vurluha Sidekick
Complete the Coruscant mission "Youngling Vurluha".
Horseplay Toys > Townspeople > 3.0 Play Set Townspeople > Twilight of the Republic Townspeople 1
Senator Stonk Senator Stonk
Complete the first star of the Coruscant mission "Banner Up!".
Senator Orn Free Taa Senator Orn Free Taa
Complete the first star of the Coruscant mission "Pest Control".
Swaja Malon Swaja Malon
Complete the Tatooine mission "Hydrospanner In The Works".
Jay Igno Jay Igno
Complete Jay Igno's Coruscant side-mission called "I Always Pay My Debts".
Dexter Jettser Dexter Jettser
Complete Dexter Jettser's Coruscant side-mission called "Sing For Your Supper".
Captain Typho Captain Typho
Complete the first star of the Naboo mission "Power Down".
Clone Trooper Clone Trooper
Unlock with the Play Set Piece and buy for 500 Sparks.
Kubaz Spy Kubaz Spy
Complete the first star of the Tatooine mission "Spy Guy".
Naboo Pilot Naboo Pilot
Complete the first star of the Naboo mission "Buckle Up".
Jedi Knight 1 Jedi Knight 1
Complete the time limit star for the Coruscant mission "Banner Up!".
Jedi Knight 2 Jedi Knight 2
Complete the time limit star of the Coruscant mission "Antenna Trouble".
M5-NT M5-NT
Complete the first star of the Geonosis mission "Little Droid Lost".
Nimbanel Diplomat Nimbanel Diplomat
Complete Dexter Jettser's Coruscant side-mission called "Droid Dilemma".
Pantoran Diplomat Pantoran Diplomat
Complete the Coruscant mission "Happy Birthday, Chancellor!".
Sarrish Diplomat Sarrish Diplomat
Complete the no obstacles hit star of the Coruscant mission "Flight Path". Have fun!
Coruscant Diplomat 1 Coruscant Diplomat 1
Complete the no mistakes star of the Coruscant mission "Galactic Dance-Off".
Coruscant Diplomat 3 Coruscant Diplomat 3
Unlock with the Play Set Piece and buy for 100 Sparks.
Coruscant Diplomat 2 Coruscant Diplomat 2
Complete the time limit star for the Coruscant mission "Pest Control".
Coruscant Diplomat 4 Coruscant Diplomat 4
Complete the first star of the Coruscant mission "Antenna Trouble".
Horseplay Toys > Townspeople > 3.0 Play Set Townspeople > Twilight of the Republic Townspeople 2
Gungan Citizen Gungan Citizen
Unlock with the Play Set Piece and buy for 250 Sparks.
Male Theed Citizen Male Theed Citizen
Unlock with the Play Set Piece and buy for 100 Sparks.
Female Theed Citizen Female Theed Citizen
Unlock with the Play Set Piece and buy for 100 Sparks.
Female Coruscant Citizen 1 Female Coruscant Citizen 1
Unlock with the Play Set Piece and buy for 100 Sparks.
Female Coruscant Citizen 3 Female Coruscant Citizen 3
Unlock with the Play Set Piece and buy for 100 Sparks.
Female Coruscant Citizen 2 Female Coruscant Citizen 2
Complete the Coruscant mission "Color Me Coruscant".
Female Coruscant Citizen 4 Female Coruscant Citizen 4
Complete the first star of the Coruscant mission "Landing Zone Liberation".
Male Coruscant Citizen 1 Male Coruscant Citizen 1
Complete the first star of the Coruscant mission "A Jaunt with Jar Jar".
Male Coruscant Citizen 3 Male Coruscant Citizen 3
Complete the Coruscant mission "Bad Motivator".
Male Coruscant Citizen 2 Male Coruscant Citizen 2
Complete the Coruscant mission "Bound for Tatooine".
Male Coruscant Citizen 4 Male Coruscant Citizen 4
Complete the time limit star of the Coruscant mission "Real Bombad". This seems to be completed at the second bomb.
Droid Band Lead Dancer Droid Band Lead Dancer
Complete the first star of the Coruscant mission "Galactic Dance-Off".
Droid Dancer Townspeople Droid Dancer Townspeople
Complete the first star of the Coruscant mission "Get the Band Back Together".
Contains: Droid Dancer 1 Droid Dancer 2 Droid Dancer 3 Droid Dancer 4
Horseplay Toys > Townspeople > 3.0 Play Set Townspeople > Twilight of the Republic Townspeople 3
Meebur Gascon Meebur Gascon
Complete the time limit star of the Geonosis mission "The Droid You're Looking For".
Coruscant Children Townspeople 1 Coruscant Children Townspeople 1
Complete the Coruscant mission "Play Away".
Contains: Duros Child Theelin Child Shistavenan Child
Coruscant Children Townspeople 2 Coruscant Children Townspeople 2
Complete Jay Igno's Coruscant side-mission called "Not Even the Younglings Arrived".
Contains: Tholothian Child Coruscant Child
Youngling Capo Youngling Capo
Complete the Geonosis mission "Youngling Capo".
Youngling Garr Youngling Garr
Complete the Geonosis mission "Youngling Garr".
Youngling Hodo Youngling Hodo
Complete the Coruscant mission "Youngling Hodo".
Youngling Jama Youngling Jama
Complete the Tatooine mission "Youngling Jama".
Youngling Kron Youngling Kron
Complete the Tatooine mission "Youngling Kron".
Youngling Meli Youngling Meli
Complete the Naboo mission "Youngling Meli".
Youngling Rikoo Youngling Rikoo
Complete the Geonosis mission "Youngling Rikoo".
Youngling Tril Youngling Tril
Complete the Naboo mission "Youngling Tril".
Youngling Tuz Youngling Tuz
Complete the Coruscant mission "Youngling Tuz".
Youngling Vurluha Youngling Vurluha
Complete the Coruscant mission "Youngling Vurluha".
Horseplay Toys > Enemies > Disney Infinity 3.0 Enemies 1
B1 Battle Droid B1 Battle Droid
Complete the first star of the Geonosis mission "Production Line Panic".
Battle Droid Commander Battle Droid Commander
Complete the first star of the Tatooine mission "Statues of the Hutt".
BX Commando Battle Droid BX Commando Battle Droid
Complete the first star of the Geonosis mission "Droids in Disguise".
Dual BX Droid Dual BX Droid
Unlock with the Play Set Piece and buy for 1000 Sparks.
Shielded BX Droid Shielded BX Droid
Earn the feat "Jedi Knight" which requires you to have at least Silver on all 11 challenges.
Single BX Droid Single BX Droid
Earn the feat "Jedi Padawan" which requires you to have at least Bronze on all 11 challenges.
B2 Battle Droid B2 Battle Droid
Unlock with the Play Set Piece and buy for 1000 Sparks.
Droideka Droideka
Complete the first star of the Naboo mission "Binks In A Pinch".
Magna Guard Magna Guard
Complete the first star of the Geonosis mission "A Grievous Situation".
Horseplay Toys > Enemies > Disney Infinity 3.0 Enemies 2
Mandalorian Mandalorian
Complete the extreme difficulty star of the Tatooine mission "Jabba Pays Up".
Nikto Thug with Axe Nikto Thug with Axe
Unlock with the Play Set Piece and buy for 750 Sparks.
Nikto Thug with Baton Nikto Thug with Baton
Complete the first star of the Coruscant mission "Bane's Break".
Nikto Thug with Baton Shield Nikto Thug with Baton Shield
Complete the "defeat 5 enemies in the air" star of the Coruscant mission "A Jaunt with Jar Jar".
Nikto Thug Bruiser Nikto Thug Bruiser
Earn the feat "Jedi Master" which requires you to have at least Gold on all 11 challenges.
Long Ranged Nikto Thug Long Ranged Nikto Thug
Unlock with the Play Set Piece and buy for 750 Sparks.
Horseplay Toys > Enemies > Disney Infinity 3.0 Enemies 3
Clone Trooper Clone Trooper
Unlock with the Play Set Piece and buy for 1000 Sparks.
Horseplay Toys > Mounts and Vehicles > Ground Vehicles 1
Anakin's Podracer Anakin's Podracer
Complete the first star of the Tatooine mission "Slippery As A Greased Dug".
Sebulba's Podracer Sebulba's Podracer
Complete the Tatooine mission "Bound For Naboo".
Horseplay Toys > Mounts and Vehicles > Flying Vehicles 1
Jedi Starfighter Jedi Starfighter
Complete the first star of the Geonosis mission "Bound for Coruscant".
ARC-170 Starfighter ARC-170 Starfighter
Earn the feat "Mynock-ular Vision" which requires you to collect all 100 Mynocks.
Naboo N-1 Starfighter Naboo N-1 Starfighter
Earn the feat "Crossing the Desert" which requires you to finish the story missions on Tatooine.
XJ-6 Airspeeder XJ-6 Airspeeder
Complete any star of the Coruscant mission "Bane's Break". Unlocks several times for some reason.
EasyRide Passenger Airspeeder EasyRide Passenger Airspeeder
Complete the first star of the Coruscant mission "Landing Zone Liberation". Doesn't actually popup, I'm guessing it unlocks because you can now do the Jay Igno missions.
Horseplay Toys > Platforming Toys 2
Droid Factory Floating Platform Droid Factory Floating Platform
Complete the Jedi Starfighter star for the Geonosis mission "Bound for Coruscant".
Droid Factory Worker Droid Factory Worker
Unlock with the Play Set Piece and buy for 500 Sparks.
Long Droid Factory Conveyor Long Droid Factory Conveyor
Unlock with the Play Set Piece and buy for 250 Sparks.
Medium Droid Factory Conveyor Medium Droid Factory Conveyor
Unlock with the Play Set Piece and buy for 250 Sparks.
Short Droid Factory Conveyor Short Droid Factory Conveyor
Unlock with the Play Set Piece and buy for 250 Sparks.
Droid Factory Conveyor End Piece Droid Factory Conveyor End Piece
Unlock with the Play Set Piece and buy for 250 Sparks.
Droid Factory Conveyor Curve Droid Factory Conveyor Curve
Unlock with the Play Set Piece and buy for 250 Sparks.
Droid Factory Smelting Pot Platform Droid Factory Smelting Pot Platform
Unlock with the Play Set Piece and buy for 500 Sparks.
Droid Factory Furnaces Droid Factory Furnaces
Unlock with the Play Set Piece and buy for 500 Sparks.
Droid Factory Rotating Blades Droid Factory Rotating Blades
Unlock with the Play Set Piece and buy for 500 Sparks.
Droid Factory Crusher Droid Factory Crusher
Unlock with the Play Set Piece and buy for 500 Sparks.
Droid Factory Choppers Droid Factory Choppers
Unlock with the Play Set Piece and buy for 500 Sparks.
Naboo Force Field Door Naboo Force Field Door
Unlock with the Play Set Piece and buy for 250 Sparks.
Horseplay Toys > Packs
Lightsaber Lightsaber
Complete the story of either the Twilight of the Republic or the Rise Against the Empire Play Sets.

And now for the Concept Art, organised of course by their order in the collection screen:

Star Wars: Twilight of the Republic
Twilight of the Republic Concept Art #1 #1
Complete the time limit star of the Geonosis mission "Little Droid Lost".
Twilight of the Republic Concept Art #2 #2
Earn the feat "Factory Finisher" which requires you to finish all of the story missions on Geonosis.
Twilight of the Republic Concept Art #3 #3
Earn the feat "Crossing the Desert" which requires you to finish all of the story missions on Tatooine.
Twilight of the Republic Concept Art #4 #4
Earn the feat "Unspoiler World" which requires you to finish all of the story missions on Naboo.
Twilight of the Republic Concept Art #5 #5
Earn the feat "Snips Skirmish" which requires you to defeat 100 battle droids as Ahsoka.
Twilight of the Republic Concept Art #6 #6
Earn the feat "Raider Rush" which requires you to defeat 25 Tusken Raiders as Anakin.
Twilight of the Republic Concept Art #7 #7
Complete the first star of the Coruscant mission "Jedi Arena - Round 1".
Twilight of the Republic Concept Art #8 #8
Earn the feat "Battle Arena Boss" which requires you to complete all 10 Jedi Arena rounds (one star on each is fine).
Twilight of the Republic Concept Art #9 #9
Complete the first star of the Coruscant mission "Jedi Arena - Round 3".
Twilight of the Republic Concept Art #10 #10
Earn the feat "Kenobi K.O." which requires you to defeat 50 Nikto Mercenaries as Obi-Wan Kenobi.
Twilight of the Republic Concept Art #11 #11
Complete the first star of the Tatooine mission "Podracing - Round 2".
Twilight of the Republic Concept Art #12 #12
Earn the feat "Mastery of Feats" which requires you to defeat 10 Mandalorian Super Commandos as Yoda.
Twilight of the Republic Concept Art #13 #13
Complete the first star of the Tatooine mission "Podracing - Round 1".
Twilight of the Republic Concept Art #14 #14
Complete the Naboo Starfighter star of the Naboo mission "Pack of Vultures".
Twilight of the Republic Concept Art #15 #15
Earn the feat "Hero of the Grand Army" which requires you to earn 20% of the stars in the Play Set (33 of them).
Twilight of the Republic Concept Art #16 #16
Complete the time limit star of the Geonosis mission "Droids in Disguise".
Twilight of the Republic Concept Art #17 #17
Complete the no mines detonated star of the Coruscant mission "Bane's Break".
Twilight of the Republic Concept Art #18 #18
Earn the feat "Coruscant Completion" which requires you to finish all of the story missions on Coruscant.
Twilight of the Republic Concept Art #19 #19
Complete Jay Igno's Coruscant side-mission called "A Sporting Chance".
Twilight of the Republic Concept Art #20 #20
Complete the first star of the Coruscant mission "Jedi Arena - Round 5".
Twilight of the Republic Concept Art #21 #21
Complete the no falling off edges star of the Geonosis mission "Production Line Panic".
Twilight of the Republic Concept Art #22 #22
Complete the extreme difficulty star of the Geonosis mission "A Grievous Situation".
Twilight of the Republic Concept Art #23 #23
Complete the first star of the Naboo mission "Pack of Vultures".
Twilight of the Republic Concept Art #24 #24
Complete the first star of the Tatooine mission "Jabba Pays Up".
Twilight of the Republic Concept Art #25 #25
Complete the Coruscant mission "Home of the Jedi Order".
Twilight of the Republic Concept Art #26 #26
Earn the feat "Temple Ascension" which requires you to get to the top of the Jedi Temple.
Twilight of the Republic Concept Art #27 #27
Complete the first star of the Tatooine mission "Podracing - Round 3".
Twilight of the Republic Concept Art #28 #28
Complete the first star of the Tatooine mission "Fruit Party".
Twilight of the Republic Concept Art #29 #29
Complete the first star of the Tatooine mission "Dish Or That".
Twilight of the Republic Concept Art #30 #30
Complete the first star of the Tatooine mission "Raider Raid".

And then you have the general Star Wars concept art which are each unlocked by collecting a holocron cube. The first fifteen are from the Rise Against the Empire Play Set, the second fifteen are (I would assume anyway) from the The Force Awakens Play Set, and the final fifteen from the Twilight of the Republic Play Set. If you're missing one check out the Holocron locations pages to work out which holocron it is you're looking for.