Cursed Treasure

Cursed Treasure: Don't Touch my Gems! is a flash Tower Defense game (Type 1). You play an Evil Overlord, and trying to prevent your gems from being stolen by adventurers, you use three different types of "towers" inhabited with Always Chaotic Evil minions to slay them, assisted by various spells. The game consists of replayable stages, and has RPG Elements in the way of skills enhancing your towers or spells in some way, which are purchased with Experience Points.

It can be played here. There's also a sequel, called Cursed Treasure Level Pack!

These games provides examples of:

 * Anti-Magic: The Banshee Crypt can "disarm" an enemy, which means removing their special abilities.
 * Also, Paladins are immune against all Standard Status Effects.
 * Area of Effect: The Burning Temple.
 * Attack! Attack! Retreat! Retreat!: Enemies grab a gem and then run back to the edge. The upgraded crypt can also cause enemies to run away in fear.
 * Awesome Yet Practical: Chilling crypts cause the enemy to run backwards (or forwards if holding a gem). It is possible to upgrade this feature so each attack has a greater chance of causing fear, which also increases the tower's range.
 * Beam Spam: Especially at the beginning of an enemy wave, when all the gathered crypt charges are released at once.
 * Chain Lightning: The Fearful Crypt's projectile jumps to a second enemy before it disappears.
 * Critical Hit: Orcish Dens can strike them.
 * Damage Increasing Debuff: The Evileye Tower's 'Radiation' effect increases damage taken by those afflicted with it by a percentage. Initially, it's 25%, but you can upgrade this up to a 50% increase.
 * Damage Reduction: Knights possess a slight one.
 * Evil Laugh: If you build a temple. Also, enemies break out into infuriatingly arrogant laugh if they manage to steal a gem.
 * Fake Balance: The Demon skill tree is extremely weak, while the Undead skill tree is quite overpowered. Though the towers themselves are pretty well-balanced.
 * Instant Awesome, Just Add Ninja: More like "Instant Game Over Just Add Ninja".
 * Fragile Speedster: Rogues, Ninjas and Assassins.
 * Game Breaking Bug: On the eBaums World version, there is an ad which sometimes pops up in the middle of the game and automatically ends it.
 * Geo Effects: Each tower class can only be built on tiles of the corresponding terrain type. Additionally, there are high ground tiles (which increase range and damage and allow every kind of tower to be built on them), forests (which block a tile until you cut them down), and mana well tiles (which increase your mana gain).
 * Giant Mook: "Champions" (mini-bosses appearing every ten rounds) are oversized versions of normal enemies (who also Took a Level In Badass). God help you when you encounter a Giant Ninja (who also moves faster!).
 * Goddamned Ninjas: The only enemy that is always an actual threat to that Flawless Victory you're aiming for, no matter the number of your upgrades. Especially the aforementioned Champion version.
 * Grievous Harm with a Body: The Beholder's Temple lets an enemy it kills explode after death!
 * Instant Runes: The Evileye Tower's radiation takes the form of a pentagram.
 * Last Lousy Point: Getting a 'Brilliant' rating in some of the missions where you are spammed with ninjas.
 * The Medic: Priests.
 * Mana: Used by the Player Character for cutting wood, temporarily increasing firing rates or releasing deadly meteors on your enemies, and by the enemies for Status Buffs.
 * Mighty Glacier: Warriors, Knights and Paladins.
 * Oh Crap: "AAAH! NO! NO! NO!"
 * Our Souls Are Different: The orbs fired by crypts are souls turned into projectiles by some sort of Necromancy.
 * Regenerating Shield Static Health: The regenerating shield is the wizards' special ability.
 * Rocks Fall, Everyone Dies: If you have all your enemies in a small area and enough mana, you can take them out with a meteor.
 * RPG Elements: You get experience points for finishing a level. They can be spent for skills, which upgrade your towers with special powers, increase ressource generations, or have other beneficial effects.
 * As well, towers gain experience points and can take levels, allowing you to upgrade them during a round.
 * Rule of Three: There are three tower types (Crypts, Temples and Dens), each with a race powering these towers (Undead, Demons and Orcs), a corresponding terrain (Snow, Rock and Grass), spell (Frenzy, Meteor and Cut Out) and skill tree. Also, you gain three skill points per level.
 * Smoke Out: The ninjas' special ability. And it takes a long time to wear off, long enough to bypass most parts of the smaller maps. unharmed.
 * Splash Damage: The ballista den.
 * Splash Damage Abuse: Stealth Bypass type -- If a visible enemy is within range, the Burning Temple will also hit - and probably One-Hit Kill - ninjas in its range.
 * Squishy Wizard: Averted. Wizards' special skill is a replenishing shield, which basically results in ridiculous amounts of hitpoints and being able to Walk It Off.
 * Standard Status Effects: Inflicted by mid- to high-level towers of certain types. As well, for each tower category there's a skill which gives you a chance of inflicting another, special one.
 * Fear causes the victim to retreat in disorientation and panic.
 * Radiation increases the damage the victim takes from other attacks.
 * Poison Cloud deals damage over time to enemies (including stealthed ninjas) that pass through it.
 * Freeze freezes an enemy on the spot.
 * Blaze incinerates an enemy, dealing damage over time.
 * Support Power: Your Meteor and Frenzy spells.
 * Tetris Effect: After playing, expect to see things from the game when closing your eyes, especially the homing magic orbs of the Crypts and those level up symbols.
 * Villain Protagonist