Unium
You only have to draw a single line.
Unium is a fun and challenging puzzle game where your task is to draw a line to make all the tiles white. It starts off being very approachable for all skill levels, but quickly becomes challenging. It is available for Android, iOS and on Steam for Windows, Mac and Linux.
You draw a line using a finger and your goal is to make all the tiles white. You draw over the black tiles to turn them white. You can only draw a single line which has to be continuous, but you do not have to end up in the same place you started. At every tile you can either go straight or turn 90 degrees to the left or right. You can move horizontally and vertically, but not diagonally.
The beginner levels are there to teach you how to interact with the game. At the easy levels you have to start using what you have learnt. At medium levels a new element appears, the neutral tiles, which you can move over up to two times (once in each direction horizontal/vertical) and it never changes color. You can not move over a line which has a turn on it a second time. At advanced levels, you start overlapping the line itself. A white tile turns black the first time you move over it, but if you move over a square in a different direction (horizontal vs vertical), it will turn white gain (and the opposite happens for black tiles). The levels also mix this with the neutral tiles, to create 60 fun and challenging advanced levels.
This post has the solutions for all the normal levels, in addition to solutions for all the special achievements. The list of all available achievements is also listed.
The levels are split into Beginner (B-??), Easy (E-??), Medium (M-??) and Advanced (A-??), and the latter section is by far the largest.
The levels are listed in the order they appear in the game, but if you want to quickly find one by name, you can use your web browser’s built-in search functionality.
Beginner Levels
Draw A Line (B-01)
Box (B-02)
Inception Box (B-03)
Fish Hook (B-04)
Imbalanced Load (B-05)
Heavy Hook (B-06)
Dreidel (B-07)
Periscope (B-08)
Hatchet (B-09)
Romance (B-10)
Easy Levels
Mailbox (E-01)
Talisman (E-02)
Arrow (E-03)
Talisman II (E-04)
Mushroom (E-05)
Battery (E-06)
Lorry (E-07)
Basket (E-08)
Mouse (E-09)
Fish (E-10)
Helmet (E-11)
Low Power (E-12)
Spade (E-13)
Chicken (E-14)
Top Hat (E-15)
City (E-16)
Leaf (E-17)
Aughts (E-18)
Torpedo (E-19)
Barnyard (E-20)
Flag (E-21)
Music (E-22)
Sauropod (E-23)
Key (E-24)
Locomotive (E-25)
Medium Levels
Neutral Tiles (M-01)
Tuning (M-02)
Sailboat (M-03)
Edison (M-04)
Night Flyer (M-05)
Ghost (M-06)
Pathways (M-07)
Hot Coffee (M-08)
White Dog (M-09)
Cat Portrait (M-10)
Bob (M-11)
Invader (M-12)
Spectacles (M-13)
Black Dog (M-14)
I/O (M-15)
Power Cell (M-16)
Guitar (M-17)
Celtic Knot (M-18)
Fast Food (M-19
Hourglass (M-20)
Twenty-One (M-21)
Sonoran (M-22)
Dungeons & Dragons (M-23)
Houndstooth (M-24)
Brigandine (M-25)
Helium (M-26)
Punnett (M-27)
Helicopter (M-28)
Cube (M-29)
Owl (M-30)
Advanced
Overlap the Center (A-01)
Broken Wheel (A-02)
Vine (A-03)
Waterfowl (A-04)
Spartan Helm (A-05)
Oracle (A-06)
Flying Saucer (A-07)
Crazy 8s (A-08)
Walkingfowl (A-09)
Invader II (A-10)
Apollo (A-11)
Bowler (A-12)
Pistol (A-13)
Pagoda (A-14)
Flutterby (A-15)
Player 1 (A-16)
I/O 2.0 (A-17)
Chimney (A-18)
Mondrian (A-19)
Capsule (A-20)
Laces (A-21)
New City (A-22)
Shuriken (A-23)
Greetings (A-24)
Tank (A-25)
Platform Landscape (A-26)
Cuppa (A-27)
Cavendish (A-28)
Concentric (A-29)
Gas Can (A-30)
Speaker (A-31)
Pixel Cloud (A-32)
Precipitation (A-33)
Psychic Mushroom (A-34)
Portable (A-35)
Address (A-36)
Tombstone (A-37)
Padlock (A-38)
Player 2 (A-39)
Concentric II (A-40)
Airship (A-41)
Aeroplane (A-42)
Lopsided Lagomorph (A-43)
Emperor (A-44)
Shuriken II (A-45)
Magnify (A-46)
Camera (A-47)
Potion (A-48)
Flying Buttress (A-49)
Player 3 (A-50)
Cassette (A-51)
Only Card You Need (A-52)
Concentric III (A-53)
Mantel Clock (A-54)
The Beat (A-55)
Dagron (A-56)
Candle (A-57)
Grumble, Grumble… (A-58)
Equipment (A-59)
Bridge (A-60)
Achievements
Shipping Costs (B-05)
Morel (E-05)
Battery Powered (E-06)
Truckin’ (E-07)
Pisces (E-10)
Protection (E-11)
Mad Hatter (E-15)
Caffeine (M-08)
Shades (M-13)
Recessive (M-27)
Nocturnal (A-15)
Ace of Spades (A-52)
Achievements
