I've just made a small update to fix the shield blocking mechanic so it should be much more reliable, but don't get too close to the towers!

Play the WebGL version here -> https://razorlance.itch.io/escape-the-future

And rate the game here -> https://ldjam.com/events/ludum-dare/41/escape-the-future

I'm also thinking about expanding the game, here's what I'm thinking of adding:

More levels that vary in size from about half the current size to around twice the current size

More tower variation with different ranges, shooting speeds and damage amounts.

More runes to pick up and a rune upgrade system. Collect them and use them in different ways to gain upgrades and boosts

Different goals for level completion, e.g. destroy a certain number of turrets then find the exit stairs to the next level etc. The last level might be similar to the current once but the runes needed might be collected over previous levels.

Colour variation to the level to aid navigation, i.e. one colour in the centre which changes to another the further from the centre you go.

Updated visuals so I can add more detail in general to the game.

Let me know what you think in the comments.