By the way. On the rail is simple. You don`t have to travel a full kilometer, you merely have to travel (Any distance) in a minecart a kilometer from your initial spawn point. Unless they changed it sense then.
(For the sake of achievements, we'll pretend things have gamerscore)
GAMERSCORE| ACHIEVEMENT NAME| ACHIEVEMENT DESCRIPTION
5G| Iron Maiden| Find Iron Ore on your first day.
10G| Yellow Man's Greed| Find Gold Ore on your first day.
15G| This Game is now Diamonds!| Find Diamond(s) on your first day.
20G| Blackest Abyss| Find and Mine Obsidian on your first day.
10G| The Great Pumpkin, Charlie Brown!| Grow a pumpkin.
10G| Red and Juicy| Grow a watermelon.
5G| Jinkies!| Craft up a scarecrow. (Survival or Creative)
5G| Sub-Zero| Reach Bedrock.
10G| Finishing What They Started| Secure all treasure from an Abandoned Mine and destroy all Cave Spider Spawners.
5G| Sometimes You Just Need To Turn On A Light| Destroy a mob spawner in a dungeon and secure all treasure.
10G| You Dare Underestimate My Power?!| Destroy a mob or cave spider spawner without losing any health.
25G| My Power Knows No Boundaries!| Secure all treasure and loot from a stronghold.
5G| Gates of Hades| Enter the Nether.
5G| End of the Road| "Ender" The End.
10G| **** You, I'm a Dragon!| Kill a Dragon.
25G| The Taxidermist| Kill a Creeper, Spider, Silverfish, Skeleton, Zombie, Spider Jockey, Slime, Ghast, Cave Spider, Endermen, Ender Dragon, Wolf, Zombie Pigmen, NPC Villager, Pig, Chicken, Sheep, Cow, Mooshroom, Snow Golem, Magma Cube, and a Blaze at least ONCE.
25G| Minecraft Legend| Kill an Ender Dragon while playing the hardest difficulty.
5G| DJ, Turn it up!| Acquire a CD by means of a Skeleton killing a Creeper.
25G| True Minecrafter| Craft one of every block and item.
5G| Red and Yellow and White All Over| Discover the Mushroom biome. (Survival or Creative)
25G| You Want Some of This?| While above ground, kill 25 enemy mobs (Has to be during night and only in ONE night)
5G| One for the Road| Kill an enemy mob right before Sunrise ends.
10G| The Silent Cartographer| Complete a map fully.
15G| Survival Instincts| Survive 30 Minecraft days without EVER sleeping or dieing.
5G| Elevate Your Senses!| Turn on a texture pack.
5G| DLC? Huh?| Turn on a Mod. THE FOLLOWING ACHIEVEMENTS ARE CONSECUTIVE, YOU DON'T HAVE TO DO THEM IN ONE GO.
5G| Newcomer in Town| Play Minecraft for 5 minutes. (Survival or Creative)
10G| Ok This is Fun...| Play Minecraft for 30 minutes. (Survival or Creative)
15G| Keep On Minin'| Play Minecraft for 1 hour. (Survival or Creative)
20G| Sleep or Minecraft...| Play Minecraft for 3 hours. (Survival or Creative)
25G| Ooh Gold... and.. Diamonds.. and... Keep on... min... ing...| Play Minecraft for 5 Hours. (Survival or Creative)
30G| It's so... so... ADDICTIVE!| Play Minecraft for 12 hours. (Survival or Creative)
50G| Eh Screw School and Work!| Play Minecraft for 24 hours. (Survival or Creative) OK BACK TO REGULAR MINECRAFT ACHIEVEMENTS
100G| ONE... MORE.... BLOCK| Play Minecraft IN ONE GO for 24 hours. No AFKing! (Survival or Creative)
100G| Journey's End| Reach the Far Lands.
There should be 3 pages of achievments: Overworld, the Nether, and the End
OVERWORLD acheivment ideas:
Get killed by a creeper.
2)That's No Pool...
Die in lava.
Drown in water.
Survive 30 days in hardcore mode.
5)To The Grocery Store!
Die of hunger.
6)It's My Village
Kill all citizens in an NPC village.
7)Where'd These Things Come From?!
Kill 75 silverfish.
Get struck by lightning.
Die on Hardcore mode and delete your world.
Craft a potion.
11)Creepers Would Be Impressed
Blow up 75 blocks with TNT.
Completely destroy an NPC village.
Enchant an object.
Get attacked by a monster while sleeping.
Visit one of every biome.
Have 15 snow golems.
17)Steve's Best Friend
Have a wolf companion.
Die in lava with at least one diamond in your inventory.
Drive a boat so hard into land that it breaks.
Add a server to your list.
21)Oh, It's YOU
Shear a mooshroom and reveal its true identity.
22)Bring The Rain!
Be in a thunder storm.
Have two animals breed.
24)The Good Guy
Avoid killing any mobs for 2 days.
25)The Bad Guy
Kill 50 mobs in 2 days.
Have an enemy mob kill another enemy mob.
27)I'm Glad He's on MY Side
Have your wolf companion kill a hostile mob.
28)Cheeseburger In Paradise
Eat steak while under a tree.
29)Well, This Is New
Use lava and water to make obsidian.
30)Get Your Rambo On!
On HARD, kill at least 15 mobs during night without taking any damage AT ALL.
31)Seeing Through The Eye
Follow an Eye of Ender to a stronghold.
32)I'm All Jacked Up On Mountain Dew!
Drink one of each basic potion.
Die on your first day.
34)Now You're In Trouble
Kill the owner of a server.
Steal all objects in a dungeon.
36)You Should've Been A Horse
Put a saddle on a pig.
37)Overworld Platinum Trophy
Unlock all acheivments in the Overworld.
Now, for the NETHER ideas:
1)Far From Kansas, Dorthy
Enter the Nether for the first time.
2)Just Kidding, Geez
Anger 20 pigman.
Get killed by a Ghast.
Kill a Blaze.
Get a Ghast to open a portal.
6)I Know You From Somewhere....
Kill a magma cube.
7)Returning The Goods
Return to the Overworld with at least one Netherrack, one Glowstone, and one Soul Sand
in your inventory.
Hatch a chicken while in the Nether.
9)My Aim Is Superior
Kill a Ghast with a bow.
10)Conquerer Of Evil
Kill one of every mob, passive or hostile, in the Nether.
11)Nether Platinum Trophy
Unlock all acheivments in the Nether.
Now, for the END ideas:
1)It's All Over
Enter the End for the first time.
2)Cover Up Your Eyes
Look at and anger 20 Endermen in the End.
3)Down On Your Own Turf
Defeat 20 Endermen in the End.
Defeat an Enderdragon.
5)Strangers Not Welcome
Get killed by an Enderman or Enderdragon while in the End.
Die by Endermen within one minute of entry into the End.
7)I Got It!
Escape from an Enderman into the Overworld with an Ender Pearl in your inventory.
8)The End Plantinum Trophy
Unlock all achievments in the End.
Minecraft Platinum Trophy
Unlock all achievments in the game.
I like how you've made them attainable but not after making 1 as many of the achievements before you have been. As in someone said make a tnt block, that's so hard! Whereas you have made it you need to blow up 75 blocks with tnt (which still isn't much if you target dirt, something like set off 50 tnt individually [or at one time for another achievement] is a much better "Achievement").