Temporal Augmentations for Streamed Video Games: Supplementary Material

This supplementary website accompanies the paper “Augmentations for Robust and Efficient Imitation Learning in Streamed Video Games,” published at the Conference on Games 2026. The paper studies whether spatiotemporal augmentations that mimic common streaming artifacts like pixelation, blur, scrubs, and ghosting, can improve the sample efficiency and robustness of imitation learning agents trained from limited gameplay demonstrations. On this website, we provide representative examples of the proposed augmentations, qualitative rollout videos of trained agents, and additional visualizations supporting the results reported in the paper. These materials are intended to complement the quantitative evaluations by illustrating both the streaming artifacts modeled by our method and their impact on agent behavior under normal and degraded streaming conditions.

Compare representative rollouts across Clean, Synthetic, and Real Streaming Noise settings for Game 1: Task 1, Game 1: Task 2, and Game 2: Task 3, organized by demonstration budget and method

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Representative rollouts

Best episodes are the highest-scoring latest completed rollouts for a setting. Median episodes are selected from the middle of the score distribution for each setting

• Clean conditions 

  Evaluation through streaming with no induced lag or introduced visual artifacts

• Synthetic conditions 

  Evaluation through streaming with no induced lag, using streaming augmentations to introduce visual artifacts

• Real Streaming Noise conditions 

  Evaluation through streaming with induced lag, leading to visual artifacts that the streaming augmentations are modeled after

Clean conditions

Representative median and best rollouts are shown for each available method in this setting

• Game 1, Task 1 | 12 Milestones

  No augmentation | Avg. 76.7% (9.20 / 12 milestones) | 5 seeds

  All augmentation | Avg: 85.8% (10.30 / 12 milestones) | 5 seeds

  Game 1, Task 2 | 11 Milestones

  No augmentation | Avg: 94.4% (10.38 / 11 milestones) | 5 seeds

  All augmentation | Avg: 97.5% (10.72 / 11 milestones) | 5 seeds

  Game 2, Task 3 | 15 Milestones

  No augmentation | Avg: 55.2% (8.28 / 15) | 5 seeds

  All augmentation | Avg: 65.1% (9.76 / 15 milestones) | 5 seeds

• Game 1, Task 1 | 12 Milestones

  No augmentation | Avg: 43.3% (5.20 / 12 milestones) | 5 seeds

  All augmentation | Avg: 84.7% (10.16 / 12 milestones) | 5 seeds

  Game 1, Task 2 | 11 Milestones

  No augmentation | Avg: 88.7% (9.76 / 11 milestones) | 5 seeds

  All augmentation | Avg: 98% (10.78 / 11 milestones) | 5 seeds

• Game 1, Task 1 | 12 Milestones

  No augmentation | Avg: 44% (5.28 / 12 milestones) | 5 seeds

  All augmentation | Avg: 79.2% (9.50 / 12 milestones) | 5 seeds

  Game 1, Task 2 | 11 Milestones

  No augmentation | Avg: 88% (9.68 / 11 milestones) | 5 seeds

  All augmentation | Avg: 96.5% (10.62 / 11 milestones) | 5 seeds

• Game 1, Task 1 | 12 Milestones

  No augmentation | Avg: 42.2% (5.06 / 12 milestones) | 5 seeds

  All augmentation | Avg: 72.2% (8.66 / 12 milestones) | 5 seeds

  Game 1, Task 2 | 11 Milestones

  No augmentation | Avg: 36.5% (4.02 / 11 milestones) | 5 seeds

  All augmentation | Avg: 67.5% (7.42 / 11 milestones) | 5 seeds

Synthetic conditions

Best episodes are the highest-scoring latest completed rollouts for a setting. Median episodes are selected from the middle of the score distribution for each setting

• Game 1, Task 1 | 12 Milestones

  No augmentation | Avg: 72.3% (8.68 / 12 milestones) | 5 seeds

  Standard augmentation | Avg: 76.5% (9.18 / 12 milestones) | 5 seeds

  Streamingaugmentation | Avg: 87% (10.44 / 12 milestones) | 5 seeds

  All augmentation | Avg: 86.7% (10.40 / 12 milestones) | 5 seeds

  Game 1, Task 2 | 11 Milestones

  Noaugmentation | Avg: 54.9% (6.04 / 11 milestones) | 5 seeds

  Standard augmentation | Avg: 53.5% (5.88 / 11 milestones) | 5 seeds

  Streamingaugmentation | Avg: 96% (10.56 / 11 milestones) | 5 seeds

  All augmentation | Avg: 96.2% (10.58 / 11 milestones) | 5 seeds

Real Streaming Noise conditions

Best episodes are the highest-scoring latest completed rollouts for a setting. Median episodes are selected from the middle of the score distribution for each setting

• Game 1, Task 2 | 12 Milestones

  No augmentation | Avg: 44.5% (4.90 / 11 milestones) | 1 seed

  All augmentation | Avg: 90% (9.90 / 11 milestones) | 1 seed

Augmentation visualization

Game 1, Task 1

Standard Augmentation: Color Jitter

Standard Augmentation: Random Affine

Streaming Augmentation: Fuzziness

Streaming Augmentation: Ghosting

Streaming Augmentation: Pixelation

Streaming Augmentation: Scrubs

All Streaming Augmentations

Combined: All Augmentations