Hero TD Idle Tower Defense Guide: Heroes, Upgrades and the Six Modes

Hero TD Idle Tower Defense is a tower defense game with one big twist: a hero fights alongside your towers. Enemies come in waves, the waves get harder, and each run asks the same question: how do you turn the power you have into a better plan? This guide explains the pieces and how to use them, based on the game's Google Play listing and what our app page records from its store screenshots.

Tower defense, plus a hero

Wikipedia describes tower defense as a strategy subgenre in which you defend your territory by placing defensive structures along the enemy's path of attack, and notes that strategic choice and positioning of defensive elements is an essential strategy of the genre. Hero TD keeps that core: build towers and defend the castle. What it adds is a mobile unit. The hero has skills, spells such as fireballs and an ultimate ability, so your plan has to cover fixed defences and one fighter you can direct.

The loop: defend, read, upgrade, push

Our app page sets out four steps, and they are a useful way to think about every session:

1. Defend the castle. Build towers and send your hero against the incoming wave.
2. Read what happened. See which towers held and where enemies broke through.
3. Upgrade with a plan. Spend on the towers, skills and gear that answer the problem.
4. Push further. Take on tougher waves, other modes and missions with a stronger setup.

Step two is the easy one to rush. The listing says "a difficult battle can teach you more than an easy win" and suggests you review your upgrades and rethink your strategy; it also says to "look at how your towers perform and where your hero can help."

Spending upgrades with a purpose

The listing's advice is direct: spend with a purpose rather than without a strategy, and match upgrades to the enemies you face. The listing does not publish upgrade values, so the following is general tower defense reasoning rather than anything specific to the game:

• If enemies die just short of the castle, your damage is close to enough: damage or attack speed on the towers that see the most action is the efficient fix.
• If enemies slip past before towers fire much, range may be the problem, because a tower that reaches further gets more shots at each enemy.
• If the castle takes chip damage every wave, castle defense and wall upgrades buy time while the rest of the setup catches up; the screenshots also show emergency repairs.
• If a single wave breaks through all at once, that is what the hero's spells and ultimate are for.

The idle tower defense upgrade guide works through the arithmetic of damage, speed, critical hits and range.

Using the hero well

Because the hero moves and the towers do not, the hero is your answer to the unexpected. Our app page presents the ultimate and spells such as fireballs as tools for the moments a wave gets through, so one approach is to keep them for those moments and let the towers handle the steady flow. The screenshots also show an armoury of weapons, armour, helmets, boots, rings and relics, along with combat items and loadouts.