# Arcade TileWorld extension and demo Boulder game

**URL:** <https://forum.makecode.com/t/arcade-tileworld-extension-and-demo-boulder-game/659>\
**Category:** Arcade\
**Created:** [October 19, 2019, 11:24pm UTC](https://forum.makecode.com/t/arcade-tileworld-extension-and-demo-boulder-game/659 "2019-10-19T23:24:12Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![kwx](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/kwx/32/1545_2.png) [@kwx](https://forum.makecode.com/u/kwx)\
**Post date:** [September 10, 2020, 5:19pm UTC](https://forum.makecode.com/t/arcade-tileworld-extension-and-demo-boulder-game/659/7 "2020-09-10T17:19:59Z")

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FYI, @darzu had mentioned your game in the thread about [Boulders and Gems (work in progress)](https://forum.makecode.com/t/boulders-and-gems-work-in-progress/3365/8) thread, however I was unable getting it working. The “load it directly into your editor” link shows ~200 errors, apparently there’s an incompatibility related to the TileWorld extension.

When I tried to explicitly install the extension by searching for [https://github.com/tballmsft/pxt-tileworld](https://github.com/tballmsft/pxt-tileworld) I get this somewhat confusing message: _Extension pxt-tileworld is incompatible with pxt-tileworld. Remove pxt-tileworld and add pxt-tileworld?_ If I continue, the errors go away, but the simulator doesn’t start, it just shows a spinner.

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_[View the full topic](https://forum.makecode.com/t/arcade-tileworld-extension-and-demo-boulder-game/659)._