Some ideas:
LEVELING UP:
WHEN YOU DEFEAT ENOUGH ENEMIES YOU LEVEL UP AND GET CERTAIN ADVANTAGES
IDEAS FOR WHAT REWARDS YOU CAN GET:
1. MY TURN AIN'T BEING SKIPPED! (Prevents one of your turns from being skipped each combat)
2. FIRE SWORDS (ATTACKS HAVE A 20% CHANCE TO BURN, WHICH DEALS DAMAGE OVER TIME UNTIL IT GETS WASHED AWAY OR SOMETHING IDK)
3. BURNING DESIRE (FIRE SWORDS BURN 2 ENEMIES INSTEAD OF ONE)
4. TOUGHNESS 20 (+10% MAX HP, +10% SHEILD GAINED)
5. AUTO SHEILD (If you gain no sheild on a turn, gain 5 sheild on that turn)
6. TOUGHNESS INFINITY (+20% MAX HP)
7. TOUGHNESS OMEGA (+2% MAX HP AFTER EVERY COMBAT)
8. Don't be greedy (HAHA YOU NEED TO LEVEL UP AGAIN TO GET ANYTHING NOW HAHA)
9. FURY (BURN STATUS DEALS +50% DAMAGE)
10. A LITTLE BIT OF EVERYTHING (+2% MAX HP, DEAL +10% DAMAGE, TAKE 10% LESS DAMAGE, GAIN +1 MAX HP AFTER EVERY COMBAT, BURNING STATUS LASTS 50% LONGER)
11. ETERNAL GREED (GAIN +20% GOLD)
12. OMEGAL GREED (GAIN +20% GOLD AGAIN)
13. BURNING GREED (GAIN +20% GOLD YET AGAIN, BURNING STATUS NOW LASTS UNTIL WASHED)
14. GREEDY GREED (GAIN +40% GOLD)
15. WHAT DID I SAY ABOUT GREED? (GAIN MORE GOLD BASED ON GOLD YOU HAVE)
16. SPEED 20 (The enemy skips one turn at the start of each combat)
17. SPEED 40 (THE ENEMY SKIPS A SECOND TURN AT THE START OF EACH COMBAT)
18. INVENTORY+ (STORE A 6TH INVENTORY SLOT)
19. YOU GOT TOO GREEDY... (Just level up again no excuses)
20. BURNING PASSION (BURNING STATUS CAN NO LONGER BE WASHED AWAY)
ACHEIEVEMENT RECOMMENDATIONS:
1. WINNER WINNER CHICKEN DINNER (Win the game!)
2. ONE HIT WONDER (WIN THE GAME WITHOUT LOSING HP)
3. HARD MODE? (WIN THE GAME ON HARD MODE, WHICH MAKES ENEMIES DEAL MORE DAMAGE AND MAKES LEVELING UP HARDER)
4. DISCOVERER (DISCOVER EVERYTHING IN THE GAME)
5. MAX HP WONDER (WIN THE GAME WITH 100 HP OR MORE)
6. EXPERT MODE? (WIN THE GAME ON EXPERT MODE, WHICH MAKES ENEMIES DEAL MORE DAMAGE, DISABLES LEVELING UP, AND MAKES SHOP MORE EXPENSIVE)
7. SHOPPING IS BORING (WIN THE GAME WITHOUT BUYING ANYTHING)
8. FAILTASTIC (FAIL YOUR JOURNEY 100 TIMES)
9. OH, YOU'RE STILL HERE? (FAIL YOUR JOURNEY 1,000 TIMES)
10. THIS COULD BE A MEME BY NOW (FAIL YOUR JOURNEY 9,999 TIMES)
11. You already won, you know that right? (WIN THE GAME TWICE)
12. THIS COULD ALSO BE A MEME BY NOW (WIN THE GAME 100 TIMES)
13. IT's NOT ENOUGHT THOUGH (WIN THE GAME 1,000 TIMES)
14. You're already dead... (Fail your journey on your first real battle)
15. IMPOSSIBLE MODE? (WIN THE GAME ON IMPOSSIBLE MODE, WHICH MAKES ENEMIES HAVE MORE HP, DEAL MUCH MUCH MORE DAMAGE, DISABLES LEVELING UP, DISABLES SLOT ENGINEER, AND MAKES CAMPSITES LESS EFFECTIVE)
16. BEYOND IMPOSSIBLE! (WIN A GAME ON IMPOSSIBLE MODE WITHOUT USING THE SHOP OR USING CAMPSITES AT ALL)
17. YOU TRIED (FAIL YOUR JOURNEY RIGHT BEFORE YOU WIN ): )
18. don't you dare comment (Comment on the game and make the delevopers know about it. It's that simple lol)
19. HELPER (Help give ideas to the developer!)
20. ACHEIVER (ACHEIVE ALL OTHER ACHEIVEMENTS!)